articulated bed base
The articulated bed base with independent head and foot frames and electric actuators addresses comfort and complexity issues by simplifying structure and reducing mechanical force requirements, ensuring stability and comfort.
Patent Information
- Application Number
- FR2024008556
- Authority / Receiving Office
- FR · FR
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-08-01
AI Technical Summary
Existing articulated bed bases often fail to provide optimal comfort due to basic maneuverability or require complex and expensive structures for improved functionality.
An articulated bed base with a rectangular frame, featuring independent head and foot frames controlled by electric actuators, utilizing deformable parallelograms and articulated links for raising and lowering, allowing decoupled movement of the head and foot frames.
The solution provides enhanced comfort and simplicity by reducing mechanical force requirements and structural complexity, maintaining stability with independent motorization and linear actuators, and avoiding stress on the bed frame.
Smart Images
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Abstract
Description
Title of the invention: Articulated bed base Technical field of the invention
[0001] The present invention relates generally to the field of the furniture industry. More particularly, it relates to an articulated bed base comprising a rectangular frame, an articulated bed base head frame, and an articulated bed base foot frame. State of the art
[0002] In the above field, articulated bed bases are known which include a head frame and a foot frame which can be raised and lowered between two end-of-travel positions, depending on the user's desired lying / sitting position.
[0003] The lowering and raising of the foot and head frames is generally controlled by pairs of electric cylinders operated by the user from a wired or wireless remote control.
[0004] However, the corresponding maneuvers are sometimes basic and do not allow optimal comfort for the user leaning on the bed base via a mattress.
[0005] In other cases, interesting maneuverability is obtained, but from complex and expensive structures. Presentation of the invention
[0006] In order to remedy the aforementioned drawback of the prior art, the present invention proposes an articulated bed base comprising (a) a rectangular frame with median longitudinal axis M, comprising two parallel long frame sections, a short head section and a short foot section, (b) an articulated bed base head frame, and (c) an articulated bed base foot frame,
[0007] This bed base is characterized by the fact that:
[0008] said hinged bed base head frame comprises:
[0009] - a proximal head portion, a first end of which is carried by a system of a deformable parallelogram attached to said chassis,
[0010] - a distal head portion which is assembled with a second end of said proximal part of the head by a first articulation,
[0011] which articulated bed base further comprises head frame control means for maneuvering said head frame of bed base in raising and lowering,
[0012] which head frame control means include:
[0013] - two pairs of articulated head links, arranged parallel to each other and interposed between a head cross member connecting the two long sides of the frame, and said distal part of the head,
[0014] which pairs of head linkages are connected by a head control crossmember, and
[0015] - a head control actuator, disposed on said median longitudinal axis M, interposed between said head control beam and a central head beam which connects said short head section and said head beam, and
[0016] said hinged bed base frame comprises:
[0017] - a proximal part of feet, a first extremity of which is attached to the long chassis sections via a second articulation,
[0018] - a distal part of feet which is assembled with a second end of said proximal part of the feet by a third joint,
[0019] which articulated bed base further includes foot frame control means for maneuvering said bed base foot frame in raising and lowering,
[0020] which means of controlling the foot frame include:
[0021] - two pairs of articulated foot links, arranged parallel to each other and interposed between a foot control crossbar connecting the two long sides of the chassis and said distal part of the feet,
[0022] which pairs of foot linkages are connected by a foot control cross member, and
[0023] - a foot control actuator, disposed on said median longitudinal axis M, interposed between said foot control beam and a median foot beam which connects said short foot panel and said foot beam.
[0024] Other non-limiting and advantageous features of the articulated bed base according to the invention, taken individually or in all technically possible combinations, are as follows:
[0025] - the end of the distal part of the feet which is opposite the proximal part of The feet are attached to the long sides of the chassis by means of lateral connecting rods providing structural reinforcement;
[0026] - one end of each lateral connecting rod is fixed to one of the long sides of the chassis by a fixed joint,
[0027] and the other end of each lateral connecting rod is integral with the distal part of the feet of the articulated bed base foot frame, by a movable joint of the circular movement type without play;
[0028] - the pairs of foot and head connecting rods each consist of a connecting rod proximal which extends from said head or foot cross member, and a distal connecting rod which connects said proximal connecting rod and said distal head or foot member,
[0029] said head and foot control cross members connecting said proximal connecting rods of said pairs of connecting rods;
[0030] - the head and foot control actuators consist of cylinders electric;
[0031] - the bed base comprises a fixed central bed base part disposed between said frame of the head and the said frame of feet.
[0032] Of course, the various features, variants, and embodiments of the invention can be combined in various ways, provided they are not incompatible or mutually exclusive. Detailed description of the invention
[0033] In addition, various other features of the invention become apparent from the attached description made with reference to the drawings which illustrate non-limiting embodiments of the invention and where:
[0034] [Fig-1] is a functional diagram of an articulated bed base according to the invention, whose low horizontal position is represented here in bold lines and whose raised position is represented in dotted lines;
[0035] [Fig.2] is a perspective view of one possible embodiment of a bed base articulated according to the functional scheme of [Fig.1], here represented in the raised position.
[0036] As can be seen in Figures 1 and 2, the hinged bed base 1 comprises:
[0037] - a rectangular chassis 2 with a median longitudinal axis M,
[0038] - a hinged bed base head frame 3, and
[0039] - a hinged bed base leg frame 4.
[0040] The rectangular chassis 2 includes a median longitudinal axis M, and it consists of two parallel long chassis panels 5, a short head panel 6 and a short foot panel 7.
[0041] The two long sides of the chassis 5 extend parallel to the median longitudinal axis M.
[0042] The short head panel 6 and the short foot panel 7 extend parallel to each other and perpendicular to the median longitudinal axis M.
[0043] The hinged bed base head frame 3 comprises:
[0044] - a proximal head portion 8, a first end 9 of which is carried by a deformable parallelogram system 10 attached to chassis 2, and
[0045] - a distal head portion 11 which is assembled with a second end 12 of the proximal part of head 8 by a first articulation 13.
[0046] Two deformable parallelogram systems 10 are provided opposite each other, on each side of the proximal part of the head 8, fixed to the latter and to the long sides of the chassis 5.
[0047] The articulated bed base 1 further includes control means for the head frame 14 to maneuver the head frame of the bed base 3 in raising and lowering.
[0048] These head frame control means 14 include:
[0049] - two pairs of articulated head links 15, arranged parallel to each other and interposed between a head cross member 16, connecting the two long chassis sides 5, and the distal part of the head 11, which two pairs of head connecting rods 15 are connected by a head control cross member 17, and
[0050] - a head control actuator 18, disposed on the median longitudinal axis M, interposed between the head control cross member 17 and a head median beam 19 which connects the head cross member 16 and the short head panel 6.
[0051] This head control actuator 18 preferably consists of an electric cylinder controlled by a wired or wireless remote control.
[0052] Each pair of head links 15 forms a kind of compass and consists of a proximal link 151 which extends from the head cross member 16, and a distal link 152 which connects in an articulated manner said proximal link 151 and the distal part of the head 11.
[0053] The head control cross member 17 connects the proximal links 151 of the pairs of head links 15.
[0054] The pairs of connecting rods 15 are arranged on either side of the median longitudinal axis M of the bed 1.
[0055] The distal connecting rods 152 of the pairs of head connecting rods 15 are articulated on a cross member 111 of the distal part of the head 11.
[0056] The hinged bed base leg frame 4 comprises:
[0057] - a proximal part of feet 20, a first end 21 of which is integral with the long chassis sections 5 by a second articulation 22, and
[0058] - a distal foot portion 23 which is assembled with a second end 24 of the proximal part of feet 20 by a third joint 25.
[0059] the articulated bed base 1 further includes means for controlling the foot frame 26 to maneuver the bed base foot frame 4 in raising and lowering.
[0060] These means for controlling foot frame 26 include:
[0061] - two pairs of articulated foot links 27, arranged parallel to each other and interposed between a cross member of feet 28, connecting the two long sides of the frame 5, and said distal part of feet 23, which two pairs of connecting rods of feet 27 are connected by a control cross member of feet 29, and
[0062] - a foot control actuator 30, disposed on the median longitudinal axis M, interposed between the 29-foot control beam and a 31-foot median beam which connects the 28-foot cross member and the 7-foot short panel.
[0063] This foot control actuator 30 preferably consists of an electric cylinder controlled by a wired or wireless remote control.
[0064] Each pair of foot links 27 forms a kind of compass and consists of a proximal link 271 which extends from the foot cross member 28, and a distal link 272 which connects in an articulated manner said proximal link 271 and the distal part of feet 23.
[0065] The foot control crossbar 29 connects the proximal links 271 of the link pairs 27.
[0066] The pairs of connecting rods 27 are arranged on either side of the median longitudinal axis M of the bed frame 1.
[0067] The distal connecting rods 272 of the pairs of connecting rods of feet 27 are articulated on a cross member 231 of the distal part of feet 23.
[0068] The head frame of the articulated bed base 3 and the foot frame of the articulated bed base 4 are intended to receive mattress support elements, for example transverse slats not shown.
[0069] Between the articulated head frame of the bed base 3 and the articulated foot frame of the bed base 4, the bed base 1 may include a fixed part of the bed base 32 attached to the two long sides 5. This fixed part of the bed base 32 is also intended to receive mattress support elements, for example transverse slats not shown.
[0070] To optimize the resistance and stability of the articulated bed base frame 4, the end of the distal part of the feet 23 which is opposite said proximal part of the feet 20 is attached to the long sides of the frame 5 by means of lateral connecting rods 34.
[0071] These lateral connecting rods 34 are arranged on each side of the articulated bed base frame 4, along the long sides 5 of the chassis 2.
[0072] One end of each lateral connecting rod 34 is fixed to one of the long sides 5 of the frame 2 by a fixed joint 341, and their other end is fixed to the distal part of the foot 23 of the articulated bed frame foot 4 by a movable joint 342 of the type with circular movement without play.
[0073] The two lateral connecting rods 34 are preferably designed so that the distal part of the feet 23 remains in a horizontal or substantially horizontal plane during the raising and lowering maneuvers of the articulated bed base foot frame 4.
[0074] The head frame of the articulated bed base 3 and the foot frame of the articulated bed base 4 are controlled, in raising and lowering, respectively by the control cylinder 18 and by the control cylinder 30, preferably independently.
[0075] The articulated bed base head frame 3 and the articulated bed base foot frame 4 therefore include their own control means which allow their movements to be decoupled.
[0076] The movements of the hinged headboard 3 and the hinged footboard 4 are therefore not dependent on each other. The hinged headboard 3 can be placed in the lowered position while the hinged footboard 4 is in the lowered or raised position; and this hinged headboard 3 can be placed in the raised position while the hinged footboard 4 is in the lowered or raised position.
[0077] Kinematics of the head frame of the articulated bed base 3
[0078] Starting from the low horizontal position illustrated in [Fig. 1], an extension movement of the rod of the electric jack 18 allows the pair of connecting rods 15 to raise the distal part of the head 11 of the head frame of the articulated bed base 3 by pivoting around the first joint 13, until a mechanical stop of the joint 13 is reached.
[0079] The continued extension of the rod of the cylinder 18 causes an upward pivoting of the proximal part of the head 8, in relation to the deformable parallelogram lateral structures 10, also up to an end of stroke illustrated on [Fig.2] and in dotted lines on [Fig.1].
[0080] A retraction command for the rod of the cylinder 18 results in an inverse sequence of movements.
[0081] In lifting, the movement of the lateral structures of the deformable parallelogram 10 is accompanied by a recoil movement, that is to say a translational movement of the whole of the head frame of the articulated bed base 3, in the direction of the short head panel 6.
[0082] The dimensioning and positioning of the deformable parallelogram systems 10 and the pairs of connecting rods 15 are adapted to obtain the desired sequence of movements.
[0083] Kinematics of the articulated bed base leg frame 4
[0084] Starting from the low horizontal position illustrated in [Fig.1], an extension movement of the rod of the electric jack 30 allows the pair of connecting rods 27 to raise the distal part of the feet 23 of the articulated bed base foot frame 4 by pivoting around the third joint 25, until a mechanical stop is reached on the joint 25.
[0085] The continued extension of the rod of the cylinder 30 causes a pivoting upwards of the proximal part of feet 20, in relation to the second joint 22, also up to an end of travel illustrated on [Fig.2] and in dotted lines on [Fig.1].
[0086] A retraction command for the rod of the cylinder 18 results in an inverse sequence of movements.
[0087] The dimensioning and positioning of the second joint 22, the pairs of connecting rods 27 and the lateral connecting rods 34, are adapted to obtain the desired sequence of movements.
[0088] The articulated bed base 1 has a simple and inexpensive structure, in particular due to the presence of the two jacks placed on the longitudinal axis of the bed base which independently manage the movements of the head and foot frames.
[0089] Advantages of the bed base structure according to the invention:
[0090] - Independent motorization and mechanical structures between the head frame and the foot frame.
[0091] - Movement by linear electric actuators without an angle drive system likely to cause malfunctions.
[0092] - Limited mechanical force requirements (on the order of 4000 N instead of 6000 N) (for previous structures).
[0093] - The mechanical forces are contained in preferably central cross members metallic (head rail 16 and foot rail 28), and there is no longer any stress on the bed frame.
[0094] - The head cross member 16 and the foot cross member 28 stiffen and stabilize the geometry of the bed frame.
Claims
1. Demands Hinged bed frame (1) comprising (a) a rectangular frame (2) with median longitudinal axis (M), comprising two parallel long frame sections (5), a short head section (6) and a short foot section (7), (b) a hinged bed frame head (3), and (c) a hinged bed frame foot (4), characterized in that said hinged bed frame head (3) comprises: - a proximal head portion (8) of which a first end (9) is supported by a deformable parallelogram system (10) integral with said chassis (2), - a distal head portion (11) which is assembled with a second end (12) of said proximal head portion (8) by a first articulation (13), which articulated bed frame (1) further includes head frame control means (14) for maneuvering said bed frame head frame (3) in raising and lowering, which head frame control means (14) include: - two pairs of articulated head rods (15), arranged parallel to each other and interposed between a head cross member (16) connecting the two long sides of the frame (5), and said distal part of the head (H), which pairs of head linkages (15) are connected by a head control cross member (17), and - a head control actuator (18), disposed on said median longitudinal axis (M), interposed between said head control cross member (17) and a median head beam (19) which connects said short head panel (6) and said head cross member (16), and in that said articulated bed base foot frame (4) comprises: - a proximal part of feet (20) of which a first end (21) is integral with the long frame panels (5) by a second articulation (22), - a distal foot part (23) which is assembled with a second end (24) of said proximal foot part (20) by a third joint (25), which articulated bed frame (1) further includes foot frame control means (26) for maneuvering said bed frame foot frame (4) in raising and lowering, which foot frame control means (26) include: - two pairs of articulated foot links (27), arranged parallel to each other and interposed between a foot cross member (28) connecting the two long sides of the frame (5) and said distal part of the feet (23), which pairs of foot links (27) are connected by a foot control cross member (29), and - a foot control actuator (30), disposed on said median longitudinal axis (M), interposed between said foot control cross member (29) and a median foot beam (31) which connects said short side of the feet (7) and said foot cross member (28).
2. Articulated bed base (1) according to claim 1, characterized in that the end of the distal part of feet (23) which is opposite said proximal part of feet (20) is attached to the long sides of the frame (5) by means of lateral connecting rods (34) providing structural reinforcement.
3. Articulated bed base (1) according to claim 2, characterized in that one end of each lateral connecting rod (34) is fixed to one of the long sides (5) of the frame 2) by a fixed joint (341), and in that the other end of each lateral connecting rod (34) is fixed to the distal foot part (23) of the articulated bed base foot frame (4) by a movable joint (342) of the circular movement type without play.
4. Articulated bed base (1) according to any one of claims 1 to 3, characterized in that said pairs of foot (27) and head (15) connecting rods are each made up of a proximal connecting rod (151, 271) which extends from said head (16) or foot (28) cross member, and a distal connecting rod (152, 272) which connects said proximal connecting rod (151, 271) and said distal part of head (11) or foot (23), said head (17) and foot (29) control cross members connecting said proximal connecting rods (151, 271) of said pairs of connecting rods (15, 27).
5. Articulated bed base (1) according to any one of claims 1 to 4, characterized in that said head control actuators (18) and foot control actuators (30) consist of electric cylinders.
6. Hinged bed base (1) according to any one of claims 1 to 5, characterized in that it comprises a fixed central part of bed base (32), disposed between said head frame (3) and said foot frame (4).