Key information

Title
FREESTANDING FURNITURE LIFTING SYSTEM
Application number
20241194
Case type
National
Status
19.10.2026 Patent meddelt (B1)
Filed
03.12.2024
Effective date
03.12.2024
Publicly available
04.06.2026
Next annual fee due
31.12.2026
Applicant
MASE HOME AS (NO)
Owner
MASE HOME AS (NO)
Inventor
Susanne Sekkesæter (NO) et al.
Granted
19.10.2026
Patent number
350233
Expiry date
03.12.2044

Abstract and drawing

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content.
The invention relates to a freestanding furniture system comprising a cantilevered furniture element movable vertically along a guiding mechanism supported by a substantially flat base surface. The flat base ensures stability by maintaining the vertical projection of the structure's barycenter within its footprint, eliminating the need for anchoring to walls, floors, or ceilings. The system is adaptable to lifting various furniture types, such as beds, sofas or tables, enabling space optimization and easy integration into different environments. It promotes safety, portability, and accessibility while simplifying installation and supporting mass production. Figure 1 is proposed for publication, depicting a typical embodiment with the cantilevered furniture element in a raised position.

Publications

B1A1
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Documents

 Expand Download files (29)
Date
 Date Doc. No. Process Case number In/Out Journal description To/from
 02.11.2026 09-01 Saksbehandling 20241194(350233) UT PT Varsel om betaling av første årsavgift (3317) (PT20241194) MASE HOME AS
 20.10.2026 08-01 Saksbehandling 20241194(350233) UT PT Registreringsbrev nasjonal patent (15) (PT20241194)
08.09.2026 02-01 Endring av fullmektig 2026/06816 UT Tilbakemelding på generell henvendelse MASE HOME AS
 07.09.2026 01-01 Endring av fullmektig 2026/06816 INN Generell henvendelse MASE HOME AS
 19.08.2026 07-01 Saksbehandling 20241194 UT Intention to grant HÅMSØ PATENTBYRÅ AS
 14.08.2026 02-01 Endring av fullmektig 2026/06214 UT Tilbakemelding på generell henvendelse HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-06 Saksbehandling 20241194 INN P32040NO00_GPoA HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-05 Saksbehandling 20241194 INN P32040NO00 Norsk kravsett HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-04 Saksbehandling 20241194 INN P32040NO00 Covering letter HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-03 Saksbehandling 20241194 INN P32040NO00 Amended description - tracked changes HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-02 Saksbehandling 20241194 INN P32040NO00 Amended description - clean HÅMSØ PATENTBYRÅ AS
 13.08.2026 06-01 Saksbehandling 20241194 INN Korrespondanse (Hovedbrev inn) HÅMSØ PATENTBYRÅ AS
 13.08.2026 01-03 Endring av fullmektig 2026/06214 INN 20241194_P32040NO00_GPoA HÅMSØ PATENTBYRÅ AS
 13.08.2026 01-02 Endring av fullmektig 2026/06214 INN 20241194_4 Korrespondanse (Hovedbrev inn) HÅMSØ PATENTBYRÅ AS
 13.08.2026 01-01 Endring av fullmektig 2026/06214 INN Generell henvendelse HÅMSØ PATENTBYRÅ AS
 16.06.2026 05-01 Saksbehandling 20241194 UT Substantive examination Mase Home AS
 02.03.2026 02-01 Endring av søker/innehaver 2026/01712 UT Tilbakemelding på generell henvendelse Mase Home AS
 26.02.2026 04-03 Saksbehandling 20241194 INN P32040NO00 Covering Letter HÅMSØ PATENTBYRÅ AS
 26.02.2026 04-02 Saksbehandling 20241194 INN General Power of Attorney HÅMSØ PATENTBYRÅ AS
 26.02.2026 04-01 Saksbehandling 20241194 INN Korrespondanse (Hovedbrev inn) HÅMSØ PATENTBYRÅ AS
 25.02.2026 01-01 Endring av søker/innehaver 2026/01712 INN Generell henvendelse Mase Home AS
 16.12.2025 03-01 Saksbehandling 20241194 UT PT Bekreftelse på fristutsettelse Mascella Sekkesæter AS
 04.07.2025 02-02 Saksbehandling 20241194 UT PT report 05:16:48
04.07.2025 02-01 Saksbehandling 20241194 UT Substantive Examination Mascella Sekkesæter AS
 03.12.2024 01-05 Saksbehandling 20241194 INN DRAWINGS Susanne Sekkesæter
 03.12.2024 01-04 Saksbehandling 20241194 INN DESCRIPTION Susanne Sekkesæter
 03.12.2024 01-03 Saksbehandling 20241194 INN CLAIMS Susanne Sekkesæter
 03.12.2024 01-02 Saksbehandling 20241194 INN Abstract Susanne Sekkesæter
 03.12.2024 01-01 Saksbehandling 20241194 INN Søknadsskjema Patent Susanne Sekkesæter

Description, claims and drawings

Disclaimer: This text has been machine-scanned and may contain errors – please refer to "Publications" for legally binding content. Description
3502331PURPOSE OF THE INVENTION[0001] Systems which lift furniture out of the way when not in use (for example, lifting a bed into the ceiling during daytime) to provide more usable floor space in a room are known. However, these existing systems require permanent and secure fixing to the fabric of the building to provide stability and safety. This dependence on structural attachment presents several challenges; 1) In new buildings, the wall, floor, or ceiling must be specifically designed to support the weight and dynamic load of the furniture lifting system; 2) In existing buildings, expensive and complicated renovation work to reinforce the wall, floor, or ceiling is required; 3) In new and existing buildings, the person installing the furniture lifting system is relying on a structure built by others and which they cannot see or verify, which increases the risk of failure and accidents.[0002] In addition, due to the need for fixing to the building’s fabric, such existing lifting systems are also typically custom designed for specific spaces, either to suit the needs of a specific new-build project, or to fit an existing space as part of a renovation. This limits the potential for mass production and widespread commercialisation of such existing systems. By enabling mass production, the invention not only facilitates more efficient manufacturing but also creates a more affordable, standardized product, which has the potential to address housing affordability challenges more effectively.[0003] The present invention solves these issues by providing a freestanding furniture lifting system that eliminates the need for wall, floor or ceiling anchors by incorporating a substantially flat base surface extending beneath the furniture to be lifted. The floor base pad prevents the system from tipping over due to the cantilever force of the furniture when in the raised position, without the need for anchoring to the building’s fabric. By using a substantially flat floor base to stabilize the system and distribute weight, the invention offers a uniquely versatile and easy-to-install solution suitable for various building types.[0004] This leads to numerous advantages; 1) The system is building-agnostic, i.e. it is does not require a particular building structure or material to be present before installation; 2) Reduced planning requirements, as no structural assessment or reinforcements are needed; 3) Faster installation, as no reinforcing, drilling, or anchoring is necessary; 4) Reduced risk, as there is no need to drill into a wall which could accidentally damage piping or wiring; 5) Standardised production, as the same system can be used with several different types of furniture; 6) Improved safety, as the system is standalone meaning it can be tested as a complete system without reliance on unverified structural building elements; 7) Flexibility and portability, as the system can be moved or removed without structural alterations or damage to the building.[0005] The present invention of a freestanding lifting system is particularly suited for urban environments where housing affordability and space optimization are critical concerns. By allowing for multifunctional use of the floor space, the system can lift any suitable furniture item (such as a bed, table, or desk) out of the way when not in use and improve the room’s flexibility and usable square meters. The invention’s design facilitates standardization and portability, so it can be moved or repurposed without structural 3502332alterations, broadening its market potential and accessibility, and promotes sustainability in the building industry.BACKGROUND TO THE INVENTION[0006] In the field of furniture lifting systems, various prior art designs have been disclosed that address the challenge of lifting and lowering furniture, particularly beds, to optimize floor space. These systems typically rely on fixed structural attachments to walls, ceilings, or floors to provide stability and support the dynamic loads associated with lifting and lowering.[0007] A review of the patent landscape reveals that most existing systems require some form of structural anchoring to the building’s fabric to prevent tipping or provide support for the dynamic loads of lifting and lowering beds. Even in cases where partially freestanding components are employed, safety anchors or attachments to the building structure are still necessary, which limits the portability and adaptability of such systems. For example, the inventions disclosed in CN 111759083 A, CN 107280323 A and WO 2020/097517 A1, demonstrate systems that rely on anchoring to the building structure to ensure stability. These examples represent only a subset of the prior art that shares similar limitations. WO 2015/192693 A1 discloses a medical movable lifter comprising balance supports, a lifting arm, a vertical drive device and a base. The lifting arm comprises a lifting moving portion and a horizontal support arm that are mutually connected. The horizontal support arm is provided with at least two balance supports for hooking and hoisting human body support elements. The vertical drive device installed on the base is in drive connection with the lifting moving portion. Universal wheels are installed at the bottom of the base.[0008] Other prior arts, such as the inventions disclosed in JP 2004-16749 A and US 10463161 B2, incorporate an item of furniture coupled to a lifting system which is supported by a bulking furniture base item or two exposed elongated legs. While these inventions disclose a freestanding furniture lifting system, they lack in terms of accessibility particularly when addressing the need for unobstructed usage of the floor area beneath the lifted furniture.[0009] The present invention overcomes these limitations by introducing a fully freestanding lifting system supported by a substantially flat base, that in many cases are less than 150mm thick and may be as wide as the furniture element to be lifted. This flat base provides a smooth, continuous, non-bulky surface, enhancing the safety and usability of the space under the bed when it is raised. Users can freely move underneath the bed without the risk of collision with an exposed system element (such as a leg), making it more accessible and functional. For example, the flat surface allows wheelchair access and prevents tripping hazards, enabling users to utilize the entire space below the bed safely.[0010] In a first aspect, the invention relates to a freestanding furniture structure as defined by independent claim 1. Preferable features are defined in the dependent claims. 3502333More particularly, the invention relates to a freestanding furniture structure comprising: a cantilevered furniture element connected to a lifting means that moves the cantilevered furniture element vertically along a guiding mechanism; a substantially flat base surface supporting the guiding mechanism so that the guiding mechanism cantilevers from the flat base surface; wherein the vertical projection of the barycenter of the structure falls on the substantially flat base surface, preventing the freestanding furniture structure from overturning.The substantially flat base surface may be less than 150 mm thick.The substantially flat base surface may comprise one or more elongated legs extended substantially horizontally.The lifting means may comprise a power actuator connected to a drive.The drive may comprise a non-locking drive mechanism.The lifting means may comprise a movable counterweight connected to the cantilevered furniture element via a pulley and a tension element.The power actuator may be connected to a control system comprising at least one sensor.The structure may include one or more additional support elements that unfold when the furniture is in a lowered position.There may be at least two guiding mechanisms.The structure may comprise a crossbeam between at least two of the guiding mechanisms.DRAWINGS[0011] FIG. 1 is a dimetric view of one embodiment of a lifting system configured to move a cantilevered furniture item vertically. The item of furniture is shown in a raised position.[0012] FIG. 2 is a side view of the lifting system in FIG. 1 where the furniture item is shown in a raised position.[0013] FIG. 3 is a top view of the lifting system in FIG. 1.[0014] FIG. 4 is a side view of the lifting system in FIG. 1 where the furniture item is shown in a lowered position.[0015] FIG. 5 is a rear view of the lifting system in FIG. 1.[0016] FIG. 6 is a section showing the sliders.[0017] FIG. 7 is an isometric view showing a lifting mean.[0018] FIG. 8 is an isometric view showing a desk under the cantilevered element in the upper position. 3502334[0019] FIG. 9 is a front view and a lateral view of a cam mechanism.[0020] FIG. 10 is a dimetric view showing an embodiment of a substantially flat surface.[0021] In the figures, same or corresponding elements are indicated by same reference numerals. For clarity reasons, some elements may in some of the figures be without reference numerals.[0022] Any positional indications refer to the position shown in the figures.[0023] A person skilled in the art will understand that the figures are just principal drawings. The relative proportions of individual elements may also be distorted.DETAILED DESCRIPTION[0024] FIG. 1 shows one embodiment of the freestanding furniture structure where a cantilevered furniture element 01 is connected to a lifting means 02 that can move the cantilevered furniture item 01 vertically along a guiding mechanism 03 from a lowered position to a raised position.[0025] The invention comprises a substantially flat base surface 04 which serves as the foundation for the guiding mechanism 03 so that it cantilevers from the flat base surface 04 and supports the cantilevered furniture element 01. The flat base surface 04 is configured to ensure that the vertical projection of the barycentre of the freestanding furniture structure falls within the boundaries of the substantially flat base surface 04, thereby providing stability and preventing the freestanding structure from overturning.[0026] The stability of the freestanding furniture structure is ensured by designing the substantially flat base surface 04 to be sufficiently long so that the vertical projection of the barycentre of the structure remains entirely within its footprint. This specific configuration prevents the structure from tipping or overturning during operation.[0027] As an example, consider a rectangular bed 01 with a length of 200 cm and a mass of 150 kg, combined with a lifting mechanism and guiding mechanism measuring 20 cm in length and with a combined mass of 100 kg. Assuming the barycentre of each component is located at its geometrical centre and disregarding the mass of the substantially flat base surface as a precautionary assumption, the overall barycentre of the system can be calculated as follows:[0028] Barycentre = (((200+20)/2)cm * 150kg (20/2)cm * 100kg) / (150kg+100kg) = 70cm from the rear side of the system.[0029] In this scenario, the substantially flat base surface must have a minimum length of 70 cm to ensure that the vertical projection of the barycentre remains within the base's footprint, thereby providing stability to the structure. This calculation, however, does not account for dynamic forces generated by the movement of the cantilevered 3502335furniture element 01. To incorporate these effects, dynamic actions modelling and simulation can be performed using 3D CAD software or equivalent tools, incorporating parameters such as system mass, velocity, acceleration, and damping. This analysis ensures a more comprehensive understanding of the system stability under real-world conditions.[0030] A safety factor is preferable to further improve safety and can be applied to the design. The safety factor can be found in national regulations or relevant design codes. For instance, using a factor of safety of 2.0, the minimum base length would be calculated as follows:[0031] Minimum Base Length = 70cm×2 = 140cm.[0032] If design codes permit the exclusion of dynamic forces under specific conditions, such as when acceleration remains below a defined threshold, the substantially flat base surface would need to be 140 cm long in the example provided.[0033] In some embodiments, the freestanding furniture structure is symmetrical in terms of both mass and geometry along the horizontal axis that is aligned with the width of the substantially flat surface. This symmetry ensures that the barycentre, or centre of mass, is located centrally. In this scenario the minimum width of the substantially flat base surface will depend on the overturning actions due to accidental loads, such as wind, human push, falling object, earthquake etc. Accidentals loads varies by country or design code.[0034] The method for calculating the minimum width and length of the substantially flat base surface shares similarities with stability calculations outlined in designed codes for tower cranes. Specifically, both consider the vertical projection of the barycentre and ensure that it remains within the footprint of the supporting base to prevent overturning. While these principles are comparable, the present invention applies them uniquely to a freestanding furniture lifting structure, which differs in scale, purpose, and dynamic characteristics from crane operations.[0035] In some embodiments, the cantilevered furniture element 01 is connected directly to the lifting means 02. In other embodiments, the cantilevered furniture element 01 is attached to a cantilevered structural beam 20, as illustrated in Fig. 6. The cantilevered structural beam 20 connects the furniture element 01 to the guiding mechanism 03 and to the lifting means 02. The cantilevered structural beam 20 provides modularity to the system in situations where the cantilevered furniture item 01 should be interchangeable.[0036] In some embodiments, additional features such as one or multiple counterweights 10 can further enhance stability by creating a balancing moment, opposite to the overturning moment of the cantilevered furniture element. This feature allows to optimize the flat base surface.[0037] The flat base surface 04 is designed to be substantially flat and continuous, avoiding any significant protrusions, elevations, or interruptions, unless those are positioned in only one of the edges so that it is a natural boundary. This configuration 3502336ensures unobstructed interaction with the floor and supports seamless movement around the furniture, enhancing usability and accessibility compared to the prior arts.[0038] In some embodiments, the substantially flat base surface 04 can have an elevation 21 on one side, as shown in FIG. 10. The elevation can for instance offer additional space that can be used to cover mechanical or electronical elements. An alternative way of using the elevation can be to hide the fastening between the substantially flat base surface 04 and the lifting means 02. The base in FIG. 10 is still considered a substantially flat base surface.[0039] In some embodiments, the thickness of the flat base surface 04 is maximum 150 mm, which is defined in the UK Building Regulations 2010 “Access to and use of building” Approved Document M 2016 Amendment, with reference to Requirements Visitable Dwellings, to enable a wide range of people to use step safely, a stepped approach should comply with the following; it states that where a step inside the dwelling is unavoidable, the rise is a maximum 150 mm. Meeting this requirement makes the dwelling a reasonable provision for most people, including wheelchair users, to approach and enter the dwelling, and access habitable rooms.[0040] In various embodiments, the flat base surface 04 may comprise one or more elongated legs 05, as illustrated in FIG. 7. Compared to existing inventions of freestanding lifting systems, such as the system disclosed in the invention of JP2004016749A, the base described in the prior art has gaps or raised surfaces that could obstruct movement, pose a tripping hazard and reduce the overall accessibility for various users. The continuous nature of the substantially flat base surface 04 in the present invention allows for better integration in environments where easy walkability and easy access are critical.[0041] The cantilevered furniture element 01 can be or include any suitable item of furniture, such as a sleeping unit such as a bed, mattress and the like; a sofa, a chair, a bench and the like; a dining unit such as a table, a counter and the like; a desk, a workbench and the like. The cantilevered furniture element in the Figs. is a bed with a mattress and a pillow. For ease, the cantilevered furniture item 01 can hereafter be referred to as a bed.[0042] In one instance, when the bed 01 is in its raised position, a secondary furniture item 06 is accessible, as illustrated in Fig. 8. This secondary furniture element 06 can be or include any suitable item of furniture such as a desk, workbench or the like; a dining unit, meeting table or the like, a sofa, bench, chair or the like; a sleeping unit such as a bed, mattress and the like. This functionality allows the room to transform between multiple distinct purposes throughout the day and allows the user to use the same square meter multiple times for different purposes. In various embodiments, the room can translate from a bedroom to a living room or to a dining room or to a meeting room or to a home office. The transformation will depend on the configuration chosen. This description will primarily relate to a bed and thus a bedroom translating into a space with an alternate function. However, it will be understood that similar concepts can be adapted to other furniture items that move vertically. 3502337[0043] In several embodiments, the bed 01 is lifted no less than 1980 mm. In the UK Building Regulations, the minimum height for internal doors is generally 1980mm to accommodate standard usability and accessibility needs. This is not explicitly stated as a minimum height in the regulations but is effectively the de facto standard in practice. The height is determined to ensure sufficient clearance beneath the bed 01, to accommodate both the movement of a person under the bed and a secondary furniture item 06. By lifting the bed 01 to a height of at least 1980 mm, the space underneath becomes even more functional and accessible, allowing a person to comfortably use the secondary furniture 06 without obstructions.[0044] In certain embodiments, when the bed 01 is of a substantially rectangular shape, it is lifted from the short side. Lifting the bed 01 from the short side reduces obstruction to people's movement on and around the furniture system, enhancing overall accessibility. This configuration ensures that both sides of the bed 01 remains easily accessible. Furthermore, lifting from the short side aligns with the typical placements of beds in a room, making it particularly suitable for compact spaces and homes.[0045] The lifting means 02, illustrated in Fig. 5, comprises a power actuator connected to a drive. The lifting means can include any mechanism capable of vertical motion for achieving vertical movement of the cantilevered furniture element 01. The specific means for implementing this aspect can be readily determined by a person skilled in the art, examples include:[0046] In one embodiment, the power actuator comprises a motor 07 and the drive comprises a lead screw 08 with a nut 09. The bed 01 is connected to the nut 09 so that when the screw 08 rotates it translates the bed vertically.[0047] In further embodiments, the lifting means 02 comprises a counterweight 10 connected to the cantilevered furniture element 01 via a pulley 11 and a tension element. The counterweight 10 is configured to balance the weight of the cantilevered furniture element 01, thereby minimizing the force required for lifting or lowering the furniture element. This balancing action reduces the load on the power actuator system, increasing its efficiency and extending its operational lifespan. Alternatively, the counterweight 10 can enable manual operation by reducing the effort needed to push or pull the cantilevered furniture element 01 vertically.[0048] In various embodiments, the power actuator comprises a hydraulic system with a motor and a pump, and the drive comprises a hydraulic cylinder. The hydraulic system operates by pressurizing a hydraulic fluid to move a piston within the hydraulic cylinder. The hydraulic cylinder can be positioned vertically and attached to the cantilevered furniture element 01, such that movement of the piston drives the vertical motion of the furniture element 01.[0049] Alternatively, in a further embodiment, the power actuator comprises a pneumatic system with a compressor, and the drive comprises a pneumatic actuator or piston. The pneumatic system operates by using compressed air to drive a pneumatic actuator or piston that provides the vertical movement of the cantilevered furniture element 01 along the guiding mechanism 03. 3502338[0050] The invention comprises a guiding mechanism 03, as illustrated in Fig. 7, ensuring controlled and stable vertical movement of the cantilevered furniture element 01 during lifting and lowering operations.[0051] The guiding mechanism 03 is supported by the substantially flat base surface 04, which provides foundational stability for the entire structure. The guiding mechanism 03 is securely attached to the flat base 04 using mechanical fasteners, bonding agents, welding, interlocking joints, or any other suitable fastening methods 13. The precise method for achieving this may vary, as understood by a person skilled in the field.[0052] The guiding mechanism 03 comprises one or more vertical tracks, rails, columns or the like, along which the lifting means 02 moves the cantilevered furniture element 01 vertically. The guiding mechanism 03 prevents lateral displacement or misalignment during vertical movement, ensuring the smooth and secure operation of the structure. The skilled person will recognize how to adapt the guiding mechanism 03, which may be implemented in various configurations, some examples include:[0053] In one embodiment, a single vertical guiding mechanism 03 is positioned along the midpoint of one side of the cantilevered furniture element 01. This guiding mechanism 03 is securely fastened to the substantially flat base surface 04, providing support for the vertical movement of the cantilevered furniture element 01. The skilled person will recognize that similar mono-mast stacker mechanisms are commercially available and can be adapted for use in this application, depending on the specific requirements for load capacity, stability, and movement precision.[0054] In another embodiment, two guiding mechanisms are used, spaced apart along one side of the cantilevered furniture element 01. This configuration is particularly advantageous for large, cantilevered furniture elements, such as wide beds or sofas or the like; as it improves load distribution and reduces the risk of wobbling during operations. In this embodiment, a crossbeam 14 may connect the two guiding mechanisms to ensure lateral structural rigidity. One or more cross bracings 15 between the two guiding mechanisms can further improve the lateral stability of the structure. This is presented in Fig. 7.[0055] The guiding mechanism 03 may include sliders, rollers, wheels 19, bearings or similar components to enable smooth vertical motion, as illustrated in Fig. 6. These components are preferably constructed from durable materials, such as steel, aluminium, reinforced polymers or the like, to withstand high loads and frequent usage. The guiding mechanism 03 is typically fabricated from metallic materials, such as steel or aluminium, for strength and durability. Other certain embodiments may utilize non-metallic materials, such as high-strength composites or reinforced plastics.[0056] In some embodiments, the lifting means 02 includes a non-locking drive mechanism 16 combined with a counterweight system 10, as outlined in Fig. 5. This setup ensures that the cantilevered furniture element 01 remains in place when the vertical movement stops, using the inherent friction in the system to maintain stability. The counterweight 10 is designed to have a weight similar to the one of the cantilevered furniture elements 01, resulting in a balanced system that minimizes the force required for raising or lowering the cantilevered furniture element 01. 3502339[0057] The use of a non-locking drive mechanism 16, in combination with the friction in the system, and a counterweight 10 provides a safety feature. This configuration ensures that any vertical accidental loads applied to the cantilevered furniture element 01 cannot exceed the frictional force within the system. As a result, the system mitigates structural stresses caused by such accidental loads, enabling a more efficient and optimized design of the load-bearing components in the structure.[0058] An example of a non-locking drive mechanism is a non-self-locking lead screw 08, which is illustrated in Fig. 5. Unlike self-locking screws, non-self-locking lead screws have a low friction angle, which allows for easier rotation under load, and a shallow thread pitch, enabling faster linear motion. This configuration enables free movement in both raising and lowering directions with minimal resistance. The skilled person will recognize that there exist various commercially available non-locking mechanisms that can be utilized, depending on specific design requirements. For instance, rack-and-pinion systems, ropes and pulleys 11, or chain-based mechanisms could be employed to achieve the same functionality.[0059] In some embodiments, the power actuator is connected to a control system that incorporates one or more sensors 17. The control system receives input from the sensors 17 to operate the cantilevered furniture element 01 with precision and to ensure safe operation. The sensors 17 can be or include any suitable sensors, depending on the configuration of the freestanding furniture system.[0060] In one embodiment, proximity sensors, such as inductive proximity sensors, are used to detect the presence of nearby metallic objects or surfaces without physical contact. For example, an inductive proximity sensor could be positioned near the top or bottom of the guiding means, and in combination with a metallic pin connected to the moving furniture item 01, it can detect when the system approaches its upper or lower position. Upon detecting proximity to the end position, the control system could gradually lower the speed of the cantilevered furniture element caused by the power actuator to ensure a smooth approach before stopping at the final position, thereby reducing mechanical wear on the system.[0061] In an additional embodiment, position sensors, such as microswitches or linear measuring position sensors, are used to track the exact current position of the movable furniture element 01 along the vertical axis. For instance, a microswitch can detect when the furniture has reached the limit of safe travel, and in response, the control system stops the power actuator to prevent damage or excessive motion.[0062] In other embodiments, load sensors, such as load cells, are used to measure weight applied to the furniture system or the force acting on its components. For instance, a load sensor could be installed under the mattrass of the bed 01 to detect when the weight exceeds a predefined safety threshold, triggering the control system to deactivate the power actuator to prevent damage.[0063] In certain embodiments, ultrasonic or infrared sensors are used to detect potential obstructions during operations. For instance, an ultrasonic sensor installed under the bed frame 01 could detect an obstacle in its path, such as a child or a pet, and 35023310signal the control system to reverse or stop the movement to prevent the bed 01 from lowering until the area is clear.[0064] In several embodiments, a combination of various types of sensors are used to ensure safe and precise operations. The skilled person will know which sensors to use based on the intended application and operating conditions of the system.[0065] In some embodiments, the freestanding furniture structure includes one or more additional support elements 18 that unfold when the cantilevered furniture element 01, such as a bed, is in the lowered position, as shown in Fig. 4, and fold when the furniture element 01 is raised. These additional support elements 18 provide stability and load distribution when the furniture is in use, particularly in its lowered state.[0066] The unfolding and folding of the support elements 18 can be implemented using various mechanisms, including but not limited to:[0067] In one embodiment, a cam mechanism 12, as illustrated in Fig. 7, is integrated into the guiding mechanism 03 and works in conjunction with a spring and a cable or rod. In this configuration, the spring keeps the support element 18 in a folded position by applying a constant force. During the lifting or lowering of the cantilevered furniture element 01, the cam mechanism 12 engages and, through the cable or rod, exerts a force opposing that of the spring, causing the support element 18 to unfold. This design is mechanically simple, robust, and does not require external power, as it relies entirely on the vertical movement of the furniture element 01 to activate the mechanism.[0068] Alternatively, in another embodiment, the system can be configured to operate in reverse, where the spring keeps the support element 18 in an unfolded position, and the cam mechanism 12 folds it during operation.[0069] The cam 12 is designed with a gradual slope to control the folding and unfolding motion smoothly, minimizing abrupt or uneven movements. The cam's geometry can be customized to ensure the support element 18 deploy at the appropriate points during the vertical movement of the furniture element 01.[0070] In another embodiment, electric motors or actuators are used to fold and unfold the support elements 18. The motors may be controlled by the same control system that operates the lifting means 02, ensuring synchronized movement between the furniture element 01 and the support elements 18.[0071] When lifting objects over an area where people may transit, it is advantageous to incorporate redundant safety features to prevent accidents and ensure the structural integrity of the system. These safety mechanisms are particularly important in the event of failures, such as a broken rope or malfunctioning lifting means.[0072] In some embodiments, two independent counterweight systems 10 are connected separately to the cantilevered furniture element 01 via ropes and pulleys. As an additional safety feature, the two counterweight 10 systems can be connected to each other via an auxiliary rope. In the event that one of the primary ropes breaks, the auxiliary rope will ensure that the two counterweight systems remain interconnected, maintaining control of the cantilevered element 01 and preventing a sudden drop. 35023311[0073] In further embodiments, a load arrestor system can be attached to the bed 01 and be used as a safety mechanism in case of failure of the lifting means 02. An example load arrestor system is shown in patent US7226038B1. The safety mechanism includes a brake mechanism which is activated when the lowering motion (i.e., speed or acceleration) of the bed 01 exceeds a predetermined limit.[0074] The skilled person will recognize that various other commercially available load arrestors can be found. The load arrestor is configured to engage a braking mechanism when the speed or acceleration of the bed 01 is exceeded. The speed or acceleration can be detected via sensors such as accelerometers, speed governors, or optical encoders, which monitor the movement of the bed in real-time and trigger the braking mechanism when preset thresholds are surpassed.[0075] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. Use of the verb “comprise” and its conjugations does not exclude the presence of elements or steps other than those stated in a claim. The article “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.[0076] The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Claims
35023312The invention claimed is; 1. A freestanding furniture structure comprising;a cantilevered furniture element connected to a lifting means that moves the cantilevered furniture element vertically along a guiding mechanism,a substantially flat base surface supporting the guiding mechanism so that the guiding mechanism cantilevers from the flat base surface,wherein the vertical projection of the barycenter of the structure falls on the substantially flat base surface, preventing the freestanding furniture structure from overturning.2. The structure of claim 1, wherein the substantially flat base surface is less than 150 mm thick.3. The structure of claim 1, wherein the substantially flat base surface comprises one or more elongated legs extended substantially horizontally.4.The structure of claim 1, wherein the lifting means comprises a power actuator connected to a drive.5. The structure of claim 4, wherein the drive comprises a non-locking drive mechanism.6. The structure of claim 1, wherein the lifting means comprises a movable counterweight connected to the cantilevered furniture element via a pulley and a tension element.7. The structure of claim 4, wherein the power actuator is connected to a control system comprising at least one sensor.8. The structure of claim 1, wherein the structure includes one or more additional support elements that unfold when the furniture is in a lowered position.9. The structure of claim 1, wherein there are at least two guiding mechanisms.10. The structure of claim 9, wherein the structure comprises a crossbeam between at least two of the guiding mechanisms.35023313P a t e n t k r a vDet gjøres krav på følgende oppfinnelse:1. Frittstående møbelstruktur omfattende;et utkraget møbelelement koblet til et løftemiddel som beveger det utkragede møbelele-5 mentet vertikalt langs en ledemekanisme,en vesentlig flat baseoverflate som støtter ledemekanismen slik at ledemekanismen utkrager fra den flate baseoverflaten,hvor den vertikale projeksjonen av massemiddelpunktet til strukturen faller på den vesentlig flate baseoverflaten og hindrer den frittstående møbelstrukturen fra å velte.10 2. Struktur ifølge krav 1, hvor den vesentlig flate baseoverflaten er mindre enn 150 mm tykk.3. Struktur ifølge krav 1, hvor den vesentlig flate baseoverflaten omfatter ett eller flere langstrakte ben som strekker seg i det vesentlige horisontalt.4. Struktur ifølge krav 1, hvor løftemiddelet omfatter en kraftaktuator koblet til et drivverk.5. Struktur ifølge krav 4, hvor drivverket omfatter en ikke-låsende drivmekanisme.15 6. Struktur ifølge krav 1, hvor løftemiddelet omfatter en bevegelig motvekt koblet til det utkragede møbelelementet via en talje og et strammeelement.7. Struktur ifølge krav 4, hvor kraftaktuatoren er koblet til et kontrollsystem omfattende minst én sensor.8. Struktur ifølge krav 1, hvor strukturen inkluderer ett eller flere ytterligere støtteelementer20 som bretter seg ut når møbelet er i en senket posisjon.9. Struktur ifølge krav 1, hvor det er minst to ledemekanismer.10. Struktur ifølge krav 9, hvor strukturen omfatter en tverrbjelke mellom minst to av ledemekanismene.
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Patent classes

IPC classesA47C 17/84A61G 7/012CPC classesA47C 17/84A61G 7/012

Citations

WO 2015/192693 A1 (A1)JP 2004016749 A (A)JP S5259005 U (U)WO 2020/097517 A1 (A1)US 2003/0009825 A1 (A1)CN 111700757 A (A)

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MASE HOME AS

Org. number: 932732505

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Postboks 41 4349 BRYNE NO (TIME Municipality, Rogaland county)Org. number: 932732505Inventors
Susanne Sekkesæter
Biskop Njåls gate 48 4010 STAVANGER NO (STAVANGER Municipality, Rogaland county)
Martin Mascella
Biskop Njåls gate 48 4010 STAVANGER NO (STAVANGER Municipality, Rogaland county)

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