Bed frame and side grid system for a bed frame

Abstract

The invention relates to a bed frame with a head unit, a foot unit, and a lying surface arranged between the head unit and the foot unit, as well as a height-adjustable side rail system for a bed frame, comprising a first frame element with two first adjustment elements adjustable in the longitudinal direction of the first frame element and spaced apart from each other, and a second frame element arranged at a distance from the first frame element with two second adjustment elements adjustable in the longitudinal direction of the second frame element and spaced apart from each other. To provide a bed frame with a quickly and easily accessible lying surface and a height-adjustable side rail system for a bed frame that enables simple and quick height adjustment, the lever systems of the height-adjustable side rail system each have a first and a second pivot lever.wherein the first articulated lever is articulated via a first connecting section to the first adjusting element and via a first coupling section to the second frame element, and wherein the second articulated lever is articulated via a second connecting section to the second adjusting element and via a second coupling section to the first frame element, such that an adjustment of the adjusting elements of the frame elements relative to each other causes a distance-changing adjustment of the second frame element relative to the first frame element between a locking position and an access position.

Description

[0001] The invention relates to a height-adjustable side rail system for a bed frame, comprising a first frame element with two first adjustment elements adjustable in the longitudinal direction of the first frame element and spaced apart from each other, and a second frame element spaced apart from the first frame element with two second adjustment elements adjustable in the longitudinal direction of the second frame element and spaced apart from each other. The side rail system has two lever systems connecting the frame elements and spaced apart from each other in the longitudinal direction of the frame elements.

[0002] Furthermore, the invention relates to a bed frame with a head unit, a foot unit, and a lying surface arranged between the head unit and the foot unit. Height-adjustable side rail systems of the type mentioned above are known in various embodiments from the prior art, see for example WO 01 / 72255 A2. They protect a person lying on the lying surface of a bed formed using the side rail system, e.g., a patient, from falling out of or off the bed and, for example, as a handrail, enable the patient to be easily lifted from a lying to a sitting position. The bed formed using the side rail is preferably used in the medical and nursing fields.

[0003] Common side rail systems often use electric drives for height adjustment. However, these have the disadvantage that in emergency situations requiring quick access to the bed surface or a patient lying on it, for example by nursing staff, the side rail system is difficult and too slow to adjust.

[0004] The invention is based on the objective of providing a height-adjustable side rail system for a bed frame that enables simple and quick height adjustment. Furthermore, the invention is based on the objective of providing a bed frame with a lying surface that is quickly and easily accessible.

[0005] The invention solves the problem by means of a height-adjustable side rail system with the features of claim 1 and a bed frame with the features of claim 12. Advantageous further developments of the invention are specified in the dependent claims.

[0006] A characteristic feature of the side guard system according to the invention is that the lever systems each have a first and a second articulated lever. According to the invention, the first articulated lever is pivotally connected to the first adjusting element via a first connecting section and to the second frame element via a first coupling section. According to the invention, the second articulated lever is pivotally connected to the second adjusting element via a second connecting section and to the first frame element via a second coupling section. Thus, an adjustment of the adjusting elements of the frame elements relative to each other causes the second frame element to change its distance from the first frame element between a locking position and an access position.

[0007] The frame elements are cylindrical and have a cross-section extending along a longitudinal axis, for example, circular, elliptical, or polygonal, preferably rectangular. The longitudinal axes of the two frame elements are spaced apart and preferably extend in a main plane of the side grille system. The first and second adjustment elements are each spaced apart on the frame elements in the direction of their longitudinal axes and are adjustable along these axes. By way of example, the first adjustment elements are arranged on the first frame element and are adjustable along its longitudinal axis.

[0008] The first and second frame elements are articulated to each other via spaced-apart lever systems, allowing the distance between them to be adjusted. Each lever system comprises a first and a second pivot lever. Adjusting the adjustment elements of the frame elements—that is, the first and second adjustment elements—along the longitudinal axis of the frame elements relative to each other, alters the distance between the second frame element and the first frame element, between the secured position and the access position. "Alternating distance" here means that the distance between the second frame element and the first frame element is increased or decreased at an angle or perpendicular to the longitudinal axes of both frame elements.

[0009] The first articulated levers are each pivotally connected to the first adjusting elements arranged on the first frame element via the first connecting sections and to the second frame element via the first coupling sections. Furthermore, the second articulated levers are each pivotally connected to the second adjusting elements arranged on the second frame element via the second connecting sections and to the first frame element via the second coupling sections. In the context of the invention, "pivotally" means that components, e.g., the articulated levers and / or the adjusting elements and / or the frame elements, are connected to one another in such a way that a relative movement, for example, a rotation about a pivot axis or a linear displacement along a longitudinal axis of the connected components, is enabled.

[0010] Adjusting the distance between the second frame element and the first frame element, between the locking position and the access position, advantageously results in a height adjustment of the side guard system. In the locking position, the second frame element is further away from the first frame element than in the access position. Consequently, when viewed perpendicular to the two longitudinal axes of the frame elements, the side guard system has a first height in the locking position and a second height in the access position that is lower than the first height. The height of the side guard system is preferably defined here as the distance between a first outer surface on the first frame element, facing away from the second frame element, and a second outer surface on the second frame element, also facing away from the first frame element.For example, the side railing system has a first height of 150 mm, preferably at least 155 mm, particularly preferably at least 160 mm. Furthermore, the side railing system has, for example, a second height of at least 400 mm, preferably at least 414 mm, particularly preferably at least 430 mm.

[0011] When moving from the locked position to the access position, the adjusting elements are moved relative to each other, i.e., preferably in the longitudinal axis direction of the first or second frame element, between an initial position associated with the locked position and an end position associated with the access position, thereby reducing the distance between the adjusting elements. Through the connection via the lever systems, the second frame element is moved relative to the first frame element at an angle, preferably perpendicular to the longitudinal axes of both frame elements, towards the first frame element, thereby reducing the distance between the frame elements.

[0012] The articulated connection of the lever systems to the frame elements and adjustment mechanisms allows for quick and easy switching between the safety position and the access position. With the side rail system at a greater height in the safety position, its protective effect for a person lying on the surface of a bed frame constructed using the side rail system, such as a patient, remains guaranteed. In this way, the side rail system acts as a fall protection barrier, preventing the person being cared for from falling out of the bed frame. The lower height of the side rail system in the access position allows for easy access for nursing staff.The advantageous interaction of the lever systems with the adjustment elements and the frame elements ensures reliable height adjustment of the side rail system, thus enabling flexible and mobile use of the side rail system and / or the bed frame.

[0013] The articulated levers can, for example, be mechanically connected to each other only via the connection to the frame elements and the adjustment elements. According to an advantageous embodiment of the invention, the first and second articulated levers are articulated to each other in such a way that the longitudinal axes of the frame elements are aligned parallel to each other. The first and second articulated levers are articulated to each other in such a way that the longitudinal axes of the frame elements are parallel to each other in the locked position and / or in the access position and / or during adjustment between these positions. The articulated connection of the articulated levers advantageously enables a horizontal alignment of the frame elements with respect to a specific operating position.

[0014] The frame elements are preferably lockable against adjustment relative to each other in the locking position and / or the access position, thereby preventing unwanted adjustment of the frame elements. According to a further development of the invention, the first or second adjusting elements are each connected to an actuating element arranged on the first or second frame element, wherein the actuating elements are adjustable between a release position that permits movement of the adjusting elements in the direction of the longitudinal axis of the first or second frame element and a locking position that blocks movement of the adjusting elements. The actuating elements can be designed differently or, preferably, identically. An actuating element preferably has a mounting section and an actuating section connected to the mounting section. The mounting section is preferably stationary, e.g.,The actuating section is attached to the frame element by means of a screw connection. The actuating section is designed and / or arranged on the mounting section in such a way that the actuating section is adjustable relative to the mounting section and / or the frame element.

[0015] The actuating element is designed such that a rotational movement and / or a linear movement of the actuating section enables adjustment between the release position and the locked position. Particularly preferably, the actuating section is integrally connected to the mounting section of the actuating element.

[0016] The actuating element is preferably made of a plastic material. For example, the actuating element is designed as a push button.

[0017] The actuating elements can be arranged on the first or, preferably, the second frame element. The arrangement of the actuating elements on the frame elements, in particular the distance between the actuating elements and / or to the adjusting elements in the longitudinal axis direction of the first or second frame element, influences whether an adjustment of the adjusting elements relative to each other is blocked by the actuating elements arranged in the locking position, and thus whether a relative adjustment of the frame elements in the locked position and / or in the access position is blocked. For example, the actuating elements can be arranged on the first or second frame element such that an adjustment of the adjusting elements in the starting position and / or in the end position is blocked by the actuating elements arranged in the locking position.

[0018] Particularly preferably, the actuating elements are arranged at a distance from one another on the second frame element such that the second adjusting elements, arranged in the initial position, are each connected to the actuating section of the actuating elements via a locking element arranged on the adjusting elements, thereby blocking any adjustment of the frame elements relative to each other in the locked position. In the release position, the adjusting elements are released for adjustment between the initial position and the end position. Preferably, the locking element is arranged on each adjusting element such that the connection between the locking element and the actuating element is released in the release position.

[0019] The operating elements can be operated simultaneously or separately by one user. Simultaneous operation of both operating elements enables synchronous adjustment of both, resulting in a parallel alignment of the longitudinal axes of the frame elements. The lever arms of the lever system are articulated to each other.

[0020] The separate actuation of the actuators allows for asynchronous adjustment of the adjusting elements, meaning that only one first or second adjusting element can be adjusted towards the other first or second adjusting element in the longitudinal axis direction of the frame element, thereby causing the longitudinal axes of the frame elements to be tilted relative to each other. In this arrangement, the articulated levers of the lever systems are mechanically connected to each other only via the adjusting elements and the frame elements.

[0021] The second, upper frame element – ​​in the operating position on a bed frame – is preferably arranged above the first frame element, which is preferably fixed to the bed frame, and is movable relative to the first, lower frame element – ​​also in the operating position on the bed frame. The actuating elements are preferably arranged on the uppermost frame element with respect to the operating position.

[0022] The advantageous further development of the invention enables a simple and reliable locking of the adjustment elements and thus, through the interaction of the adjustment elements with the lever systems and the frame elements, the locking of the frame elements in the secured position and / or the access position. Due to the advantageous design and arrangement of the actuating elements, the frame elements can be flexibly adjusted relative to each other, making the side guard system versatile in its application.

[0023] According to an advantageous embodiment of the invention, the articulated levers are rotatably mounted on a connecting element about a pivot axis of the lever system. The pivot axis is preferably arranged perpendicular to the two longitudinal axes of the frame elements and / or perpendicular to the main plane spanned by the longitudinal axes of the frame elements. The first articulated lever of a lever system is connected to the second articulated lever of the lever system at the connecting element. "Rotatably mounted" here means that the articulated levers are each rotatable about the pivot axis. Preferably, the first and second articulated levers of a lever system are connected such that both articulated levers have one degree of freedom. For example, the connection of the articulated levers at the connecting joint is a pivot joint. The connecting element is preferably pin-like, e.g., a pivot bolt.

[0024] According to an advantageous embodiment of the invention, the frame elements have a channel-like cavity for the movable reception of the adjustment elements and a recess through which the pivot levers pass. The channel-like cavity extends in the longitudinal direction of the frame elements between two frame element end faces. The frame element end faces each define the closing cross-sectional surfaces of the frame elements. "Channel-like" here means that the cavity is at least partially enclosed in the radial direction to the longitudinal axis of the frame element by an inner wall of the frame element.

[0025] The adjustment elements are each mounted within the cavity of the frame element in a way that allows them to be moved. For example, the first adjustment elements are arranged in the channel-like cavity of the first frame element. Within this cavity, the adjustment elements can be moved between their starting and end positions.

[0026] The recess is preferably arranged on a contact surface of the frame element facing the other frame element. Furthermore, the recess is a free area extending through the frame element from the contact surface to the inner wall. The recess is designed and / or arranged such that the first and second pivot levers of a lever system are movable within the recess. For example, the recess is designed as an elongated slot. Preferably, two recesses, each assigned to one of the lever systems, are arranged on the frame elements. The advantageous design of the frame elements and the associated arrangement of the adjustment elements within the frame elements enable a compact construction of the side grille system.

[0027] The adjusting elements can, in principle, be arranged on the frame elements in a freely adjustable manner, preferably in such a way that linear movement of the adjusting elements in the longitudinal direction of the frame elements is ensured. According to an advantageous embodiment of the invention, each frame element has a guide arranged in the cavity and cooperating with the adjusting elements. The guide preferably extends in the longitudinal direction of the frame element between the frame element end faces. The guide can, for example, be designed as a recess or, preferably, as a projection of the inner wall of the frame element extending into the cavity. The adjusting elements preferably interact with the guide in such a way that they are guided in a straight line along the longitudinal axis of the frame elements between their initial and final positions.The guides advantageously provided on each frame element ensure simple and reliable linear movement of the adjustment elements along the longitudinal axis of the frame elements. This advantageous design of the frame elements also reduces the susceptibility of the side panel system to malfunctions.

[0028] According to an advantageous embodiment of the invention, each frame element has two end pieces that close the channel-like cavity at its ends. The end pieces preferably have a shape adapted to the cross-section of the frame elements. Preferably, the end pieces are made of a plastic material. Furthermore, the end pieces can be connected to the frame elements by friction, e.g., by means of a screw connection, or preferably by positive locking, e.g., by means of projections extending into the cavity of the frame elements in the direction of the longitudinal axis of the frame element. The end pieces advantageously enable the frame elements to be closed at their ends, thereby preventing the ingress of dirt or grime particles into the cavity of the frame elements at the ends.

[0029] According to an advantageous embodiment of the invention, the actuating elements are pre-tensioned towards the locking position, preferably by spring pre-tensioning. For spring pre-tensioning of the actuating element, a spring element, e.g., a tension and / or compression spring, is preferably arranged on each of the adjusting elements, particularly the second adjusting elements. The spring element is especially preferably arranged on an adjusting element such that the locking element is pre-tensioned in a direction perpendicular to the longitudinal axis of the frame element and / or in a direction perpendicular to the main plane of the side grille system and / or towards the actuating element, thereby causing a pre-tension of the actuating element towards the locking position.Due to the advantageous preload, in particular spring preload of the actuating element in the direction of the locking position, the adjusting elements are automatically secured in the initial position by the actuating elements.

[0030] The articulated levers can, in principle, be designed in any way. For example, the articulated levers can be straight or simply curved. However, according to an advantageous embodiment of the invention, the articulated levers are designed with at least two bends and have a point of symmetry located on the pivot axis of the lever system. "Double-curved" means that the articulated levers have at least two bends and are point-symmetrical. The point of symmetry of the articulated levers of a lever system is located on the pivot axis of the lever system, so that the articulated levers have, for example, an S- or Z-shaped form. The connecting sections and the contact sections of the articulated levers are preferably arranged at an angle, preferably perpendicular to a base section of an articulated lever. Preferably, the sections of an articulated lever are formed in one piece.Preferably, the articulated levers are essentially planar, meaning that, with the exception of the pivot connections, they are free of protrusions and / or depressions. Particularly preferably, the first and second articulated levers are identical. Preferably, the first and second articulated levers of a lever system are arranged mirrored to a plane perpendicular to the main plane and through the pivot axis of the lever system. This advantageous design of the lever systems, and especially the articulated levers, allows for a particularly compact construction.

[0031] The lever systems described above can also be referred to as first lever systems.

[0032] According to a particularly advantageous embodiment of the invention, the side grille system comprises a third frame element connected to the first or second frame element via two second lever systems, with two third adjusting elements arranged at a distance from each other in the longitudinal direction of the third frame element. The second lever systems each have a third and a fourth element. The third articulated lever is pivotally connected to the first or second adjusting element via a third connecting section and to the third frame element via a third coupling section, and the fourth articulated lever is pivotally connected to the third adjusting element via a fourth connecting section and to the first or second frame element via a fourth coupling section, such that an adjustment of the adjusting elements of the frame elements relative to each other causes a change in the distance between the frame elements.

[0033] The third frame element is articulated to the first or second frame element via the spaced-apart second lever systems in such a way that the distance between the frame elements can be changed. Adjusting the adjustment elements of the frame elements—that is, the first or second and third adjustment elements—in the longitudinal direction of the frame elements relative to each other, causes a change in the distance of the third frame element relative to the first or second frame element. "Change in distance" here means that the distance of the third frame element to the first and / or second frame element is increased or decreased at an angle or perpendicular to the longitudinal axes of the frame elements.

[0034] The third articulated levers are each pivotally connected via the third connecting sections to the first adjusting elements arranged on the first frame element or to the second adjusting elements arranged on the second frame element, and via the first coupling sections to the third frame element. Furthermore, the fourth articulated levers are each pivotally connected via the fourth connecting sections to the third adjusting elements arranged on the third frame element, and via the fourth coupling sections to either the first or second frame element. The second lever systems are preferably designed like the first lever systems described above, so that, as identical parts, they allow for particularly cost-effective manufacturing.

[0035] The adjustment of the third frame element, which changes the distance between the locking position and the access position, is linked to the locking position and the access position. In the locking position, the third frame element is positioned further away from the first or second frame element than in the access position. The height of the side railing system, when using an advantageously designed third frame element, is preferably defined as the distance between a third outer surface of the third frame element, located away from the first and second frame elements, and the first or second outer surface.

[0036] Preferably, the third frame element is pivotally connected to the second frame element via the second lever system. For this purpose, the second frame element preferably has a further recess on its outer surface, preferably congruent with the recess arranged on the contact surface, which is penetrated by the pivot levers. The actuating elements described above are preferably arranged on the third frame element.

[0037] In an advantageously provided third frame element, the third—in the operating position on a bed frame—upper frame element is preferably arranged above the first—in the operating position on the bed frame—lower frame element and above the second—in the operating position on the bed frame—middle frame element. The upper and middle frame elements are movable relative to the lower frame element, which is preferably fixed to the bed frame. The actuating elements are preferably arranged—with respect to the operating position—on the upper frame element.

[0038] When moving from the locked position to the access position, the adjusting elements are adjusted relative to each other, i.e., preferably in the longitudinal axis direction of the frame elements between the initial position and the end position, thereby reducing the distance between the adjusting elements. Through the connection via the first and second lever systems, the second frame element is adjusted relative to the first frame element, and the third frame element is adjusted relative to the first and / or second frame elements, preferably perpendicular to the longitudinal axes of the frame elements and / or in the main plane of the side grille system, thereby reducing the distance between the frame elements relative to each other.

[0039] The third frame element, in conjunction with the first or second frame element, advantageously increases the stability of the side rail system. Furthermore, the third frame element, when in the secured position, ensures a particularly high height of the side rail system relative to its intended use, thus further enhancing the protective effect for the patient.

[0040] According to an advantageous embodiment of the invention, the first or second frame element and the third frame element each have a protective element. The protective elements are arranged on the first or the second and / or the third frame element. Preferably, the protective elements each have a cross-section extending in the longitudinal direction of the frame elements between the end faces of a frame element. Particularly preferably, one protective element is arranged on the third frame element and one on the first frame element. In the secured position, the protective elements project into a space formed between the first and second frame elements or between the first or second and third frame elements. In the access position, the protective elements cover a side wall of the second or first frame element.The protective elements advantageously counteract unwanted crushing or pinching of body parts of the patient lying on the lying surface or of an operator of the side rail system, thereby increasing the safety for the patient and / or the operator during adjustment between the safety position and the access position.

[0041] The side rail system can, in principle, be arranged in any way on the lying surface of a bed frame and / or a bed frame itself. However, according to an advantageous embodiment of the invention, at least one, preferably two, and particularly preferably at least three connecting elements, especially clamping elements, are arranged on the first frame element for mounting on a lying surface. The connecting elements are preferably arranged at intervals along the longitudinal axis of the first frame element. Preferably, the connecting elements are connected to the first frame element, for example, by a screw or rivet connection. Adjacent connecting elements preferably have the same distance from each other. The connecting elements are particularly preferably designed as clamping elements. The clamping elements are preferably C-shaped and connected via a pin element, e.g.,A locking bolt or, preferably, a screw can be connected to the lying surface. Because at least two connection elements are provided on the first frame element, the side rail system can be advantageously, reliably, and quickly attached to the bed frame or lying surface.

[0042] One or more side rail systems can each be arranged on a sleeping surface of a bed frame via two, preferably three, connecting elements and attached to a frame of the sleeping surface. Preferably, at least one side rail system is arranged between a head unit and a foot unit of the bed frame. The design of the sleeping surface is generally freely selectable. In its simplest design, the sleeping surface is a continuous plane on which a suitable mattress can be placed. Particularly preferably, the sleeping surface has a head / back segment and a leg segment, whereby the segments can be adjusted relative to each other. Depending on its size, especially its length, the bed frame can have more than two, for example, three side rail systems arranged at intervals along the longitudinal axis of the sleeping surface.The side rail system(s) are preferably arranged on the bed frame in compliance with the distances specified in the standard DIN EN 60601-2-52:2010, e.g. to the head unit, the foot unit and / or to each other.

[0043] For example, a first side rail system is arranged in the head / back segment area and a second side rail system in the leg segment area of ​​the lying surface. The first side rail system is positioned at a distance from the head unit of the bed frame, and the second side rail system is positioned at a distance from the foot unit of the bed frame. Preferably, the two side rail systems are each positioned at a maximum distance of 50 mm from the head unit or the foot unit, respectively. Furthermore, the two side rail systems are preferably positioned at a maximum distance of 55 mm from each other. The side rail systems are also preferably positioned on the lying surface such that the second outer surface of the second frame element or the third outer surface of the third frame element has a maximum distance of 375 mm from a support surface of the lying surface in the secured position and a maximum distance of 110 mm from it in the accessible position.

[0044] An embodiment of the invention is explained below with reference to the drawings. The drawings show: Fig. 1 a perspective view of a height-adjustable side railing system; Fig. 2 another perspective view of the height-adjustable side railing system of Fig. 1 Fig. 3 shows a side view of the height-adjustable side railing system of Fig. 1 and 2 without end pieces; Fig. 4 a front view of the height-adjustable side grille system of Fig. 1 -3 with a second and third frame element arranged in a safety position; Fig. 4a a front view of the height-adjustable side grille system of Fig. 4 without the second and third frame elements; Fig. 5 a front view of the height-adjustable side grille system of Fig. 1 - 4a with the second and third frame elements arranged between the securing position and an access position; Fig. 5a a front view of the height-adjustable side grille system of Fig. 5 without the second and third frame elements; Fig. 6 a front view of the height-adjustable side grille system of Fig. 1 - 5a with the second and third frame elements arranged in the access position; Fig. 6a a front view of the height-adjustable side grille system of Fig. 6 without the second and third frame elements; Fig. 7 an actuating element of the height-adjustable side grille system arranged in a locking position Fig.1-6a ; Fig.7 shows the actuating element arranged in a release position. Fig.7 Fig. 8 a perspective view of a bed frame with two height-adjustable side rail systems; Fig. 9 a front view of the bed frame of Fig. 8 with two side rail systems, each having a second and third frame element arranged in the safety position, and Fig. 10 a front view of the bed frame of Fig. 8 and 9 with two side grid systems, each having a second and third frame element arranged in the access position.

[0045] In Fig. 1 Figure 1 shows a height-adjustable side railing system with a first frame element 2 and a second frame element 3 arranged at a distance from the first frame element 2. The second frame element 3 is arranged between the first frame element 2 and a third frame element 4.

[0046] The first frame element 2 has two first adjustment elements 5, adjustable along a longitudinal axis L1 of the first frame element 2 and spaced apart from each other. The second frame element 3 has two second adjustment elements 6, adjustable along a longitudinal axis L2 of the second frame element 3 and spaced apart from each other. Furthermore, the third frame element 4 has two third adjustment elements 7, adjustable along a longitudinal axis L3 of the third frame element 4 and spaced apart from each other (see figure). Fig. 4a ).

[0047] The height-adjustable side rail system 1 has two first lever systems 8 connecting the first and second frame elements 2, 3 and arranged at a distance from each other, and two second lever systems 9 connecting the second and third frame elements 3, 4 and arranged at a distance from each other.

[0048] The frame elements 2, 3, 4 are cylindrical and each has a rectangular cross-section 10 extending along their longitudinal axes L1, L2, L3. The longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 are spaced apart from each other and each extends in a principal plane H of the side grid system 1.

[0049] The first lever systems 8 show, as in Fig. 4a , 5a and 6aThe figures show a first and a second pivotally connected lever arm 11, 12, and the second lever systems 9 each have a third and a fourth pivotally connected lever arm 13, 14. The first pivot arm 11 is pivotally connected via a first connecting section 15 to one of the first adjusting elements 5 and via a first coupling section 16 to the second frame element 3. The second pivot arm 12 is pivotally connected via a second connecting section 17 to one of the second adjusting elements 6 and via a second coupling section 18 to the first frame element 2. The third pivot arm 13 is pivotally connected via a third connecting section 19 to one of the second adjusting elements 6 and via a third coupling section 20 to the third frame element 4.The fourth joint lever 14 is articulated via a fourth connecting section 21 to one of the third adjusting elements 7 and via a fourth coupling section 22 to the second frame element 3.

[0050] The first and second joint levers 11, 12 and the third and fourth joint levers 13, 14 of one of the lever systems 8, 9 are each rotatably mounted relative to each other about a pivot axis S of the lever system 8, 9 on a connecting element in the form of a pivot pin 23. The first and second joint levers 11, 12 and the third and fourth joint levers 13, 14 each have one degree of freedom at the pivot pin 23. The first and second lever systems 8, 9 are otherwise identical in design. All joint levers 11, 12, 13, 14 are identically double-bent and have a point of symmetry SP located on the pivot axis S of the respective lever system 8, 9. The joint levers 11, 12, 13, 14 have two bending points 24 and are point-symmetrical with respect to the point of symmetry SP, so that the joint levers 11, 12, 13, 14 have an s-shaped form.The connecting sections 15, 17, 19, 21 and the coupling sections 16, 18, 20, 22 are each arranged perpendicularly to a base section 25 of the articulated levers 11, 12, 13, 14. The articulated levers 11, 12, 13, 14 of a lever system 8, 9 are each arranged mirrored with respect to a mirror plane SE perpendicular to the main plane H and through the pivot axis S of the lever system 8, 9.

[0051] The frame elements 2, 3, 4 each have a channel-like cavity 26 for the movable reception of the adjusting elements 5, 6, 7 and two recesses 27, each assigned to a first and second lever system 8, 9 and penetrated by the articulated levers 11, 12, 13, 14. The channel-like cavity 26 extends in the longitudinal direction of the frame elements 2, 3, 4 between two frame element end faces 28. The latter describe the end cross-sectional surfaces of the frame elements 2, 3, 4. The cavity 26 is partially enclosed in the radial direction to the longitudinal axis L1, L2, L3 of the frame element 2, 3, 4 by an inner wall 50 of the frame element 2, 3, 4.

[0052] The recesses 27 are arranged on the first and third frame elements 2, 4, each on a contact surface 29 of the respective frame element 2, 4 facing the other frame element 2, 4. The second frame element 3 has a contact surface 29 facing the first frame element 2 with two recesses 27 and an outer surface 30 facing the third frame element 4 with two further recesses 27, congruent with the recesses 27 arranged on the contact surface 29 of the second frame element 3. The recesses 27 are free areas penetrating the frame elements 2, 3, 4 from the contact surface 29 or outer surface 30. Furthermore, the recesses 27 are designed as elongated holes.

[0053] The frame elements 2, 3, 4 each have a guide 31 arranged in the cavity 26 and cooperating with the adjusting elements 5, 6, 7, in the form of projections of the inner wall 50 extending into the cavity 26. The guide 31 extends in the longitudinal direction of the frame element 2, 3, 4 between the frame element end faces 28.

[0054] Furthermore, the frame elements 2, 3, 4 each have two end pieces 32 closing the cavity 26 at the end, with projections 50 extending into the cavity 26 of the frame elements 2, 3, 4 in the direction of the longitudinal axes L1, L2, L3 of the frame element 2, 3, 4 for a positive-locking connection with the inner wall 28 of the frame element 2, 3, 4.

[0055] The first and second frame elements 2, 3, as well as the second and third frame elements 3, 4, are articulated to one another via the first or second lever systems 8, 9 such that the distance between the frame elements 2, 3, 4 is adjustable. At the coupling sections 16, 18, 20, 22, the articulated levers 11, 12, 13, 14 are fixedly mounted on the frame elements 2, 3, 4 and pivotally connected to them. At the connecting sections 15, 17, 19, 22, the articulated levers 11, 12, 13, 14 are fixedly mounted on the adjusting elements 5, 6, 7 and pivotally connected to them. The adjusting elements 5, 6, 7 are each positioned in the longitudinal axis direction of the frame elements 2, 3, 4 relative to each other between a Fig. 4a presented initial situation and a Fig. 6a The end position shown is adjustable.

[0056] Adjusting the adjusting elements 5, 6, 7 relative to each other from the initial position to the end position causes a change in the distance between the second and third frame elements 3, 4 relative to each other and relative to the first frame element 2 between a in Fig. 4, 4a depicted security situation and a situation in Fig. 6, 6a The access position is shown. In the secured position, the second frame element 3 and the third frame element 4 are further apart from each other and from the first frame element 2 than in the access position. Therefore, when viewed perpendicular to the longitudinal axes L1, L2, L3, the side grille system 1 has a first height H1 in the secured position and a second height H2 that is lower than the first height H1 in the access position. The height of the side grille system is defined as the distance between the outer surfaces 30 of the first and third frame elements 2, 4. The side grille system has a first height H1 of 165 mm and a second height H2 of 440 mm.

[0057] The third adjusting elements 7 are each connected to an actuating element 33 arranged on the third frame element 4. The actuating elements 33 are each located between a [missing information] that releases the movement of the third adjusting elements 7 in the direction of the longitudinal axis L3 of the third frame element 4, in Fig. 7a the depicted release position and the movement of the third adjusting elements 7 blocking, in Fig. 7 The locking position shown is adjustable. Furthermore, the actuating elements 33 are identical and each has a mounting section 34 and an actuating section 35 connected to the mounting section 34. The mounting section 34 is fixedly attached to the third frame element 4 by means of a screw connection. The actuating section 35 is integrally connected to the mounting section 34 and is designed as a push button.

[0058] The actuating elements 33 are arranged at a distance from one another on the third frame element 4 such that the third adjusting elements 7, in their initial position, are each connected to the actuating section 35 of the actuating elements 33 via a locking element 36 arranged on the third adjusting elements 7 in the locked position. This blocks any adjustment of the frame elements 2, 3, 4 relative to each other in the locked position. In the release position, the connection of the locking element 36 to the actuating element 33 is released, so that the third adjusting elements 7, and, through the connection via the lever systems 8, 9, also the first and second adjusting elements 5, 6, are released for adjustment between the initial position and the end position.By means of spring elements 37 arranged on the third adjusting elements 7, the locking elements 36 are pre-tensioned in a perpendicular direction to the main plane H of the side grille system 1 in the direction of the actuating element 33, so that a spring pre-tension of the actuating element 33 in the direction of the locking position is effected.

[0059] To adjust the height of the side railing system 1, the operating elements 33 are moved by a user from the locked position to the released position. The adjusting elements 5, 6, 7 are each adjusted relative to one another, i.e., in the longitudinal axis direction of the frame elements 2, 3, 4, between the initial position and the end position. Through the connection by means of the first and second lever systems 8, 9, the second frame element 3 is moved relative to the first frame element 2, and the third frame element 4 is moved relative to the first and second frame elements 2, 3, at an angle or perpendicular to the longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 and in the main plane H of the side railing system 1. Fig. 4, 4a the security situation shown in the Fig. 6, 6a The access situation shown is obstructed.

[0060] The operating elements 33 can be actuated by the user simultaneously or separately. Simultaneous actuation of both operating elements 33 enables synchronous adjustment of the first, second, and third adjustment elements 5, 6, 7, thereby aligning the longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 parallel to each other.

[0061] The separate actuation of the actuating elements 33 enables asynchronous adjustment of the first, second, and third adjusting elements 5, 6, 7, respectively. This means that only one of the first, one of the second, and one of the third adjusting elements 5, 6, 7 can be adjusted towards the other first, second, or third adjusting element 5, 6, 7 in the longitudinal axis direction of the frame element 2, 3, 4, thereby causing an inclination of the longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 relative to each other. For asynchronous adjustment, the pivot pins 23 of the lever systems 8, 9 must be loosened, so that the pivot levers 11, 12, 13, 14 of the lever systems 8, 9 are mechanically connected to each other only via the connection to the adjusting elements 5, 6, 7 and the connection to the frame elements 2, 3, 4.

[0062] A protective element 38 is arranged on each of the first frame element 2 and the third frame element 4 (see below). Fig. 2 The protective elements 38 each have a cross-section extending in the longitudinal direction of the frame element 2, 4 between the frame element end faces 28. In the secured position, the protective elements 38 project into a space formed between the first and second frame element 2, 3 and between the second and third frame element 3, 4. In the access position, the protective elements 38 cover a side wall 39 of the second frame element 3.

[0063] Furthermore, three connection elements in the form of C-shaped clamping elements 40 are arranged at intervals along the longitudinal axis L1 of the first frame element 2 for attaching the side rail system 1 to a lying surface 41 of a bed frame 42. The clamping elements 40 are fixedly attached to the first frame element 2 via a screw connection and can be connected to the lying surface 41 via a pin element in the form of a screw 44 that interacts with a nut 45.

[0064] The in Fig. 6 bis 8 The bed frame 42 shown comprises a lying surface 41, a head unit 46, and a foot unit 47 arranged at a distance from the head unit 46. The lying surface 41 has a head / back segment 48 and a leg segment 49, the segments 48 and 49 being adjustable relative to each other. A first side rail system 1 is arranged in the area of ​​the head / back segment 48, and a second side rail system 1 is arranged at a distance from the first side rail system 1 in the area of ​​the leg segment.

[0065] The third upper frame element 4, when attached to the bed frame 42 in its operating position, is located above the first lower frame element 2 and above the second middle frame element 3. The upper and middle frame elements 3 and 4 are positioned relative to the lower frame element 2, which is fixed to the bed frame 42, between the... Fig. 9 the security situation shown and the one in Fig. 10 The access position shown can be moved. The actuating elements 33 are therefore arranged on the upper frame element 4 with respect to the operating position.

[0066] The articulated connection of the lever systems 8, 9 with the frame elements 2, 3, 4 and the adjustment elements 4, 6, 7 enables a reliable height adjustment of the side rail system 1 in a simple and quick manner, thus enabling flexible and mobile use of the side rail system 1 and / or the bed frame 42. Bezugszeichenliste

[0067] 1 Side grid system 2 First / lower frame element 3 Second / middle frame element 4 Third / upper frame element 5 First adjustment element 6 Second adjustment element 7 Third adjustment element 8 First lever system 9 Second lever system 10 Cross-section of the frame element 11 First joint lever 12 Second joint lever 13 Third joint lever 14 Fourth joint lever 15 First connecting section 16 First coupling section 17 Second connecting section 18 Second coupling section 19 Third connecting section 20 Third coupling section 21 Fourth connecting section 22 Fourth coupling section 23 Connecting element / joint bolt 24 Bending point 25 Base section 26 Cavity 27 Recess / slot 28 Frame element end face 29 Contact surface of the frame element 30 Outer surface of the frame element 31 Guide / raise 32 End piece 33 Actuating element 34 Mounting section 35 Actuating section 36 Locking element 37 Spring element 38 Protective element 39 Side wall 40 Connection element / Clamping element 41 Lying surface42 Bed frame 43 Projection 44 Screw / pin element 45 Nut 46 Head unit 47 Foot unit 48 Head / back segment 49 Leg segment 50 Inner wall of the frame element L1 Longitudinal axis of the first frame element L2 Longitudinal axis of the second frame element L3 Longitudinal axis of the third frame element H Main plane of the side rail system H1 First height of the side rail system H2 Second height of the side rail system S Swivel axis of the lever system SE Mirror plane SP Symmetry point of the joint lever

Claims

1. Height-adjustable side rail system for a bed frame, with - a first frame element (2) with two first adjustment elements (5) that are adjustable in the longitudinal axis direction of the first frame element (2) and arranged at a distance from each other, - a second frame element (3) arranged at a distance from the first frame element (2) with two second adjustment elements (6) that are adjustable in the longitudinal axis direction of the second frame element (3) and arranged at a distance from each other, and - two lever systems (8, 9) connecting the frame elements (2, 3) to each other and arranged at a distance from each other in the longitudinal axis direction of the frame elements (2, 3), characterized in that the lever systems (8, 9) each have a first and a second articulated lever (11, 12), wherein - the first articulated lever (11) is connected in an articulated manner to the first adjustment element (5) via a first connecting section (15) and to the second frame element (3) via a first coupling section (16), and - the second articulated lever (12) is connected in an articulated manner via a second connecting section (17) to the second adjustment element (6) and via a second coupling section (18) to the first frame element (2), that an adjustment of the adjustment elements (5, 6) of the frame elements (2, 3) relative to each other causes a distance-changing adjustment of the second frame element (3) relative to the first frame element (2) between a securing position and an access position.

2. Height-adjustable side rail system according to claim 1, characterized in that the first and second articulated levers (11, 12) are connected to each other in such an articulated manner that the longitudinal axes (L1, L2) of the frame elements (2, 3) are aligned parallel to each other.

3. Height-adjustable side rail system according to one or more of the previous claims, characterized in that the first or second adjustment elements (5, 6) are each connected to an actuating element (33) arranged on the first or second frame element (2, 3), wherein the actuating elements (33) are each movable between a - a release position that allows the adjustment elements (5, 6) to move in the direction of the longitudinal axis (L1, L2) of the first or second frame element (2, 3) and - a locking position that blocks the movement of the adjustment elements (5, 6).

4. Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the articulated levers (11, 12) are mounted pivotably on a connecting element (23) so that they can rotate relative to each other about a pivot axis (S) of the lever system (8, 9).

5. Height-adjustable side rail system according to one or more of the previous claims, characterized in that the frame elements (2, 3) have - a channel-like cavity (26) for the displaceable reception of the adjustment elements (5, 6) and - a recess (27) penetrated by the articulated levers (11, 12).

6. Height-adjustable side rail system according to claim 5, characterized in that the frame elements (2, 3) each have a guide (31) arranged in the cavity (26) and cooperating with the adjustment elements (5, 6).

7. Height-adjustable side rail system according to one or more of the previous claims 3-6, characterized in that the actuating elements (33) are preloaded in the direction of the locking position, preferably spring-loaded.

8. Height-adjustable side rail system according to one or more of the previous claims, characterized in that the articulated levers (11, 12) are designed to be at least double-bent and have a center of symmetry (SP) arranged on the pivot axis (S) of the lever system (8, 9).

9. Height-adjustable side rail system according to one or more of the previous claims, characterized by a third frame element (4) connected to the first or second frame element (2, 3) via two second lever systems (9), with two third adjustment elements (7) arranged at a distance from each other in the longitudinal axis direction of the third frame element (4), wherein the second lever systems (9) each have a third and a fourth articulated lever (13, 14), wherein - the third articulated lever (13) is connected in an articulated manner via a third connecting section (19) to the first or second adjustment element (5, 6) and via a third coupling section (20) to the third frame element (4), and - the fourth articulated lever (14) is connected in an articulated manner via a fourth connecting section (21) to the third adjustment element (7) and via a fourth coupling section (22) to the first or second frame element (3, 4), that an adjustment of the adjustment elements (5, 6, 7) of the frame elements (2, 3, 4) relative to each other causes a distance-changing adjustment of the frame elements (2, 3, 4) relative to each other.

10. Height-adjustable side rail system according to claim 9, characterized in that the first or second frame element (2, 3) and the third frame element (4) have a protective element (38).

11. Height-adjustable side rail system according to one or more of the previous claims, characterized in that at least one, preferably two, particularly preferably at least three connection elements (40), in particular clamping elements for arranging a lying surface (41), are arranged on the first frame element (2).

12. Bed frame with - a head unit (46), - a foot unit (47), and - a lying surface (41) arranged between the head unit (46) and the foot unit (47) characterized by at least one height-adjustable side rail system (1) arranged on the lying surface (41) according to one or more of claims 1 to 11.

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