EP4268781A1 - Bed frame and side grid system for a bed frame - Google Patents

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, with a first frame element with two first adjustment elements which can be adjusted in the longitudinal axis direction of the first frame element and are arranged at a distance from one another and one second frame element arranged at a distance from the first frame element with two second adjusting elements which are adjustable in the longitudinal axis direction of the second frame element and arranged at a distance from one another. In order 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, it is provided that in the height-adjustable side rail system the lever systems each have a first and a second articulated lever, the first articulated lever is connected in such an articulated manner via a first connecting section to the first adjusting element and via a first coupling section to the second frame element and the second articulated lever is connected in such an articulated manner via a second connecting section to the second adjusting element and via a second coupling section to the first frame element that an adjustment the adjusting elements of the frame elements relative to one another cause a distance-changing adjustment of the second frame element relative to the first frame element between a securing position and an access position.

Description

The invention relates to a height-adjustable side rail system for a bed frame, with a first frame element with two first adjustment elements which are adjustable in the longitudinal axis direction of the first frame element and arranged at a distance from one another, and a second frame element which is arranged at a distance from the first frame element and has two adjustable and in the longitudinal axis direction of the second frame element Spaced apart second adjusting elements. The side rail system has two lever systems that connect the frame elements to one another and are arranged at a distance from one another in the longitudinal axis direction of the frame elements.

The invention further 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 are known in various designs from the prior art. They protect a person lying on a lying surface of a bed formed using the side rail system, e.g. a patient, from falling out or falling off the bed and, for example, as a handle, enable the patient to be easily raised from a lying to a sitting position. The bed formed using the side rail is preferably used in the medical sector and in the nursing sector.

Known side rail systems have, for example, electric drives for height adjustment of the side rail systems. However, these have the disadvantage that the side rail system is difficult to move and can be adjusted too slowly in emergency situations that require quick access, for example by nursing staff, to the lying surface or a patient lying on the lying surface.

The invention is based on the object 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 object of providing a bed frame with a quickly and easily accessible lying surface.

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

What is characteristic of the side rail 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 connected in an articulated manner 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 connected in an articulated manner via a second connecting section to the second adjusting element and via a second coupling section to the first frame element. As a result, an adjustment of the adjusting elements of the frame elements relative to one another causes a distance-changing adjustment of the second frame element relative to the first frame element between a securing position and an access position.

The frame elements are cylindrical and have a cross-section that extends along a longitudinal axis, for example circular, elliptical or polygonal, preferably rectangular. The longitudinal axes of the two frame elements are arranged at a distance from one another and preferably extend in a main plane of the side rail system. The first and second adjustment elements are each arranged on the frame elements at a distance from one another in the direction of the longitudinal axes of the frame elements and are each adjustable along the longitudinal axes of the frame elements. By way of example, the first adjustment elements are arranged on the first frame element and adjustable along the first longitudinal axis on the first frame element.

The first and second frame elements are articulated to one another via the lever systems arranged at a distance from one another in such a way that the distance between the frame elements can be changed. The lever systems each have a first and a second articulated lever. An adjustment of the adjusting elements of the frame elements, i.e. the first and second adjusting elements in each case in the longitudinal axis direction of the frame elements relative to one another, causes a distance-changing adjustment of the second frame element relative to the first frame element between the securing position and the access position . The term “distance-changing” means that the distance between the second frame element and the first frame element is increased or reduced at an angle or perpendicular to the longitudinal axes of both frame elements.

The first articulated levers are each articulated via the first connecting sections to the first adjusting elements arranged on the first frame element and are each articulated to the second frame element via the first coupling sections. Furthermore, the second articulated levers are each articulated via the second connecting sections to the second adjusting elements arranged on the second frame element and are each articulated to the first frame element via the second coupling sections. In the context of the invention, articulated means that components, for example 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 ones Components to each other is made possible.

The distance-changing adjustment of the second frame element relative to the first frame element between the securing position and the access position advantageously effects a height adjustment of the side railing system. In the securing position, the second frame element is at a greater distance from the first frame element than in the access position, whereby the side rail system, viewed in the perpendicular direction to the two longitudinal axes of the frame elements, has a first height in the securing position and a height in the access position compared to the first height lower second height. The height of the side rail system is preferably understood to mean the distance between a first outer surface arranged on the first frame element facing away from the second frame element and a second outer surface arranged on the second frame element facing away from the first frame element. For example, the side rail system has a first height of 150 mm, preferably at least 155 mm, particularly preferably at least 160 mm. Furthermore, the side rail system has, for example, a second height of at least 400 mm, preferably at least 414 mm, particularly preferably at least 430 mm.

When adjusting from the securing position to the access position, the adjusting elements are adjusted relative to one another, i.e. preferably adjusted in the longitudinal axis direction of the first or second frame element between an initial position assigned to the securing position and an end position assigned to the access position, whereby the distance between the adjusting elements is reduced. Through the connection by means of the lever systems, the second frame element is adjusted relative to the first frame element at an angle, preferably perpendicular to the longitudinal axes of both frame elements, in the direction of the first frame element, whereby the distance between the frame elements is reduced.

The articulated connection of the lever systems with the frame elements and the adjusting elements enables a simple and quick adjustment between the securing position and the access position. With the higher height of the side rail system in the safety position, the protective effect for a person, for example a patient, lying on a lying surface of a bed frame formed using the side rail system is still guaranteed, whereby the side rail system serves as fall protection and thus prevents a person requiring care from falling out of the bed frame Bed frame falls. The lower height of the side rail system in the access position allows 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, which enables flexible and mobile use of the side rail system and/or the bed frame.

The articulated levers can, for example, only be mechanically connected to one another via the connection to the frame elements and the adjusting elements. According to an advantageous development of the invention, it is provided that the first and second articulated levers are connected to one another in an articulated manner in such a way that the longitudinal axes of the frame elements are aligned parallel to one another. The first and second articulated levers are articulated to one another in such a way that the longitudinal axes of the frame elements are arranged parallel to one another in the securing position and/or in the access position and/or during the adjustment between the positions. The articulated connection of the articulated levers can advantageously enable horizontal alignment of the frame elements - based on a position of use.

The frame elements can preferably be locked in the securing position and/or the access position against adjustment relative to one another, whereby undesirable adjustment of the frame elements can be counteracted. According to a further development of the invention, it is provided that the first or second adjusting elements are each connected to an actuating element arranged on the first or second frame element, the actuating elements each being between a release position and releasing the movement of the adjusting elements in the direction of the longitudinal axis of the first or second frame element The locking position blocking the movement of the adjusting elements can be adjusted. The actuating elements can be designed differently or preferably identically. An actuating element preferably has a fastening section and an actuating section connected to the fastening section. The fastening section is preferably arranged in a stationary manner, for example by means of a screw connection on the frame element. The actuation section is designed and/or arranged on the fastening section such that the actuation section is adjustable relative to the fastening section and/or the frame element.

The actuating element is designed such that a rotational movement and/or a linear movement of the actuating section enables the adjustment between the release position and the locking position. Particularly preferably, the actuation section is connected in one piece to the fastening section of the actuation element.

The actuating element is preferably formed from a plastic material. For example, the actuating element is designed as a push button.

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 of the actuating elements from one another and/or from 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 one another is blocked by the actuating elements arranged in the locking position and thus a relative adjustment of the Frame elements are blocked in the securing position and/or in the access position. For example, the actuating elements can be arranged on the first or second frame element in such a way 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 blocking position.

Particularly preferably, the actuating elements are arranged at a distance from one another on the second frame element in such a way that the second adjusting elements arranged in the starting position are each connected to the actuating section of the actuating elements via a blocking element arranged on the adjusting elements, whereby an adjustment of the frame elements relative to one another in the securing position is blocked . In the release position, the adjusting elements are released for adjustment between the starting position and the end position. The blocking element is preferably arranged on the adjusting elements in such a way that the connection of the blocking element to the actuating element is released in the release position.

The actuating elements can, for example, be operated by a user simultaneously or separately. The simultaneous actuation of both actuating elements enables a synchronous adjustment of both adjusting elements, which results in a parallel alignment of the longitudinal axes of the frame elements to one another. The articulated levers of the lever system are connected to one another in an articulated manner.

The separate actuation of the actuating elements enables an asynchronous adjustment of the adjusting elements, that is, that only a first or second adjusting element is in Direction towards the other first or second adjusting element is adjustable in the longitudinal axis direction of the frame element, whereby an inclination of the longitudinal axes of the frame elements relative to one another can be effected. The articulated levers of the lever systems are only mechanically connected to one another via the adjusting elements and the frame elements.

The second - upper frame element - in the position of use on a bed frame - is preferably arranged above the first frame element, which is preferably arranged stationary on the bed frame, and can be displaced relative to the first - lower frame element - in the position of use on the bed frame. The actuating elements are preferably arranged on the uppermost frame element in relation to the position of use.

The advantageous development of the invention enables a reliable blocking of the adjusting elements in a simple manner and thus the locking of the frame elements in the securing position and/or the access position through the interaction of the adjusting elements with the lever systems and the frame elements. Due to the advantageous design and arrangement of the actuating elements, the frame elements can be flexibly adjusted relative to one another, which means that the side rail system can be used in a variety of ways.

According to an advantageous development of the invention, it is provided that the articulated levers are mounted on a connecting element so that they can rotate relative to one another 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 on the connecting element. The term “swivel joint” means that the articulated levers can each be rotated about the pivot axis. The first and second articulated levers of a lever system are preferably connected in such a way that both articulated levers have one degree of freedom. For example, the connection of the articulated levers to the connecting joint is a swivel joint. The connecting element is preferably pin-like, for example designed as a hinge pin.

According to an advantageous development of the invention, it is provided that the frame elements have a channel-like cavity for displaceably receiving the adjusting elements and a recess penetrated by the articulated levers. The channel-like cavity extends in the longitudinal axis direction of the frame elements between two frame element end faces. The frame element end faces each describe the final cross-sectional areas of the frame elements. Channel-like is understood here to mean that the cavity is at least partially enclosed by an inner wall of the frame element in the radial direction to the longitudinal axis of the frame element.

The adjusting elements are each accommodated in a displaceable manner in the cavity of the frame element. By way of example, the first adjustment elements are arranged in the channel-like cavity of the first frame element. Within the cavity, the adjusting elements can each be moved between the starting position and the end position.

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 penetrating the frame element from the contact surface to the inner wall. The recess is designed and/or arranged in such a way that the first and second articulated levers of a lever system can be moved within the recess. For example, the recess is designed as an elongated hole. Two recesses, each assigned to one of the lever systems, are preferably arranged on the frame elements. Due to the advantageous design of the frame elements and the associated arrangement of the adjustment elements in the frame elements, a compact design of the side rail system can be made possible.

The adjusting elements can in principle be arranged on the frame elements in any adjustable manner, the adjusting elements preferably being arranged on the frame elements in such a way that a linear movement of the adjusting elements in the longitudinal axis direction of the frame elements is ensured. According to an advantageous development of the invention, it is provided that the frame elements each have a guide arranged in the cavity and interacting with the adjusting elements. The guide preferably extends in the longitudinal axis direction of the frame element between the frame element end faces. The guide can be designed, for example, as a depression or preferably as an elevation of the inner wall of the frame element which projects into the cavity. The adjusting elements preferably interact with the guide in such a way that the adjusting elements are guided in a straight line between the starting position and the end position along the longitudinal axis of the frame elements. Due to the guide advantageously provided on the frame elements, a linear movement of the adjusting elements in the longitudinal axis direction of the frame elements can be ensured in a simple and reliable manner. This advantageous design of the frame elements also enables the side rail system's susceptibility to failure to be reduced.

According to an advantageous development of the invention, it is provided that the frame elements each have two end pieces that close the end of the channel-like cavity. The end pieces preferably have a shape adapted to the cross section of the frame elements. The end pieces are preferably made of a plastic material. Furthermore, the end pieces can be connected to the frame elements in a non-positive manner, for example by means of a screw connection or preferably in a form-fitting manner, for example by means of projections projecting 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 the ends, thereby counteracting the end entry of dirt or dirt particles into the cavity of the frame elements.

According to an advantageous development of the invention, it is provided that the actuating elements are biased, preferably spring-biased, in the direction of the locking position. For spring preloading of the actuating element, a spring element, for example a tension and/or compression spring, is preferably arranged on the adjusting elements, in particular the second adjusting elements. The spring element is particularly preferably arranged on an adjusting element in such a way that the blocking element is prestressed in the direction perpendicular to the longitudinal axis of the frame element and/or in the perpendicular direction of the main plane of the side rail system and/or in the direction of the actuating element, thereby prestressing the actuating element in the direction to 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 starting position by the actuating elements.

The articulated levers can basically be designed in any way. For example, the articulated levers are designed to be bend-free or simply curved. According to an advantageous embodiment of the invention, however, it is provided that the articulated levers are designed to be at least double curved and have a point of symmetry arranged on the pivot axis of the lever system. Double-bent means that the articulated levers have at least two bending points and are point-symmetrical. The point of symmetry of the articulated levers of a lever system is arranged on the pivot axis of the lever system, so that the articulated levers have, for example, an S- or Z-shaped shape. The connecting sections and the contact sections of the articulated lever are each preferably arranged bent at an angle, preferably perpendicularly, from a base section of a articulated lever. The sections of an articulated lever are preferably formed in one piece. The articulated levers are preferably designed to be essentially flat, i.e. that the articulated levers are designed to be free of elevations and/or recesses, with the exception of the articulated connections. The first and second articulated levers are particularly preferably designed identically. Preferably, a first and second articulated lever of a lever system are arranged mirrored to a mirror plane running perpendicular to the main plane and through the pivot axis of the lever system. The advantageous design of the lever systems and in particular the articulated levers enables a particularly compact design.

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

According to a particularly advantageous development of the invention, it is provided that the side rail system has a third frame element connected to the first or second frame element via two second lever systems and with two third adjusting elements arranged at a distance from one another in the longitudinal axis direction of the third frame element. The second lever systems each have a third and a fourth on. The third articulated lever is connected in an articulated manner via a third connecting section to the first or second adjusting element and via a third coupling section to the third frame element and the fourth articulated lever is articulated in such a way via a fourth connecting section to the third adjusting element and via a fourth coupling section to the first or second frame element connected that an adjustment of the adjusting elements of the frame elements to one another causes a distance-changing adjustment of the frame elements to one another.

The third frame element is articulated to the first or second frame element via the second lever systems arranged at a distance from one another in such a way that the distance between the frame elements can be changed. An adjustment of the adjustment elements of the frame elements, i.e. the first or second and third adjustment elements in each case in the longitudinal axis direction of the frame elements relative to one another, causes a distance-changing adjustment of the third frame element relative to the first or second frame element. The term "distance changing" is understood to mean that the distance between the third frame element and the first and/or second frame element is increased or reduced at an angle or perpendicular to the longitudinal axes of the frame elements.

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

The distance-changing adjustment of the third frame element is the securing position and assigned to the access location. In the securing position, the third frame element is at a greater distance from the first or second frame element than in the access position. In the case of an advantageously provided third frame element, the height of the side rail system is preferably understood to mean the distance between a third outer surface arranged on the third frame element facing away from the first and second frame elements and the first or second outer surface.

Particularly preferably, the third frame element is connected in an articulated manner to the second frame element via the second lever systems. For this purpose, the second frame element preferably has on its outer surface a particularly preferably congruent recess arranged on the contact surface and penetrated by the articulated levers. The actuating elements described above are preferably arranged on the third frame element.

In an advantageously provided third frame element, the third - upper frame element in the use position on a bed frame - is preferably arranged above the first - in the use position on the bed frame - lower frame element and above the second - in the use position on the bed frame - middle frame element. The upper and middle frame elements are displaceable relative to the lower frame element, which is preferably arranged stationary on the bed frame. The actuating elements are preferably arranged - based on the position of use - on the upper frame element.

When adjusting from the securing position to the access position, the adjusting elements are adjusted relative to one another, ie preferably adjusted in the longitudinal axis direction of the frame elements between the starting position and the end position, whereby the distance between the adjusting elements is reduced. Through the connection by means of 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 element, preferably perpendicular to the longitudinal axes of the frame elements and/or in the main plane of the side rail system, whereby the Distance between the frame elements is reduced relative to one another.

The stability of the side rail system can be increased in an advantageous manner through the third frame element and the connection to the first or second frame element. Furthermore, the third frame element in the securing position can ensure a particularly high height - relative to the position of use - of the side rail system, so that the protective effect for the patient is further increased.

According to an advantageous development of the invention, it is provided that the first or second frame element and the third frame element have a protective element. The protective elements are each 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 axis direction of the frame elements between the frame element end faces of a frame element. Particularly preferably, one protective element is arranged on the third frame element and one protective element on the first frame element. In the securing position, the protective elements protrude into a free 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 can advantageously counteract unwanted crushing or clamping of body parts of the patient lying on the lying surface or of an operator of the side rail system, thereby increasing safety for the patient and/or the operator during the adjustment between the securing position and the access position .

The side rail system can basically be arranged in any way on a lying surface of a bed frame and/or a bed frame. According to an advantageous development of the invention, however, it is provided that at least one, preferably two, particularly preferably at least three connection elements, in particular clamp elements, are arranged on the first frame element for arrangement on a lying surface. The connection elements are preferably arranged at a distance from one another in the longitudinal axis direction of the first frame element. The connection elements are preferably connected to the first frame element, for example via a screw or rivet connection. Adjacent connection elements preferably have the same distance from one another. The connection elements are particularly preferably designed as clamp elements. The clamp elements are preferably C-shaped and can be connected to the lying surface via a pin element, for example a securing bolt or preferably a screw. Because at least two connection elements are provided on the first frame element, the side rail system can advantageously be arranged and/or fastened reliably and quickly to the bed frame or the lying surface.

One or more side rail systems can each be arranged on a lying surface of a bed frame via two, preferably three connecting elements and connected to a frame of the lying surface. At least one side rail system is preferably arranged between a head unit and a foot unit of the bed frame. The design of the lying surface is fundamentally freely selectable. In its simplest embodiment, the lying surface is a continuous level on which a suitable mattress can be arranged. The lying surface particularly preferably has a head/back segment and a leg segment, the segments being able to be adjusted relative to one another. Depending on the size, in particular the length of the bed frame, the bed frame can have more than two, for example three, side rail systems arranged at a distance from one another on the lying surface in the longitudinal axis direction of the lying surface. The side rail system or systems are preferably arranged on the bed frame in compliance with the distances specified in the standard DIN EN 60601-2-52:2010, for example from the head unit, the foot unit and / or from each other.

For example, a first side rail system is arranged in the area of the head/back segment and a second side rail system in the area of the leg segment on the lying surface. The first side rail system is spaced from the head unit of the bed frame and the second side rail system is spaced from the foot unit of the bed frame. The two side railing systems are preferably each arranged at a maximum distance of 50 mm from the head unit or the foot unit. In addition, the two side railing systems are arranged at a distance of preferably a maximum of 55 mm from one another. Furthermore, the side rail systems are preferably arranged on the lying surface in such a way that the second outer surface of the second frame element or the third outer surface of the third frame element has a distance of a maximum of 375 mm in the securing position and a distance of a maximum of 110 mm in the access position to a support surface of the lying surface.

Fig. 1

eine perspektivische Ansicht eines höhenverstellbaren Seitengittersystems;

Fig.2

eine weitere perspektivische Ansicht des höhenverstellbaren Seitengittersystems von Fig. 1;

Fig.3

eine Seitenansicht des höhenverstellbaren Seitengittersystems von Fig. 1 und 2 ohne Endstücke;

Fig.4

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 1 -3 mit einem in einer Sicherungslage angeordneten zweiten und dritten Rahmenelement;

Fig.4a

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 4 ohne die zweiten und dritten Rahmenelemente;

Fig.5

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 1 - 4a mit dem zwischen der Sicherungslage und einer Zugangslage angeordneten zweiten und dritten Rahmenelement;

Fig.5a

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 5 ohne die zweiten und dritten Rahmenelemente;

Fig. 6

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 1 - 5a mit dem in der Zugangslage angeordneten zweiten und dritten Rahmenelement;

Fig. 6a

eine Frontansicht des höhenverstellbaren Seitengittersystems von Fig. 6 ohne die zweiten und dritten Rahmenelemente;

Fig.7

ein in einer Sperrstellung angeordnetes Betätigungselement des höhenverstellbaren Seitengittersystems von Fig.1-6a;

Fig.7a

das in einer Freigabestellung angeordnete Betätigungselement von Fig.7;

Fig. 8

eine perspektivische Ansicht eines Bettgestells mit zwei höhenverstellbaren Seitengittersystemen;

Fig. 9

eine Frontansicht des Bettgestells von Fig. 8 mit zwei jeweils in der Sicherungslage angeordnete zweite und dritte Rahmenelemente aufweisenden Seitengittersystemen und

Fig. 10

eine Frontansicht des Bettgestells von Fig. 8 und 9 mit zwei jeweils in der Zugangslage angeordnete zweite und dritte Rahmenelemente aufweisenden Seitengittersystemen.

An exemplary embodiment of the invention is explained below with reference to drawings. In the drawings show:

Fig. 1

a perspective view of a height-adjustable side rail system;

Fig.2

Another perspective view of the height-adjustable side rail system from Fig. 1 ;

Fig.3

a side view of the height-adjustable side rail system from Fig. 1 and 2 without end pieces;

Fig.4

a front view of the height-adjustable side rail system from Fig. 1 -3 with a second and third frame element arranged in a securing position;

Fig.4a

a front view of the height-adjustable side rail system from Fig. 4 without the second and third frame elements;

Fig.5

a front view of the height-adjustable side rail system from Fig. 1 - 4a with the second and third frame elements arranged between the securing layer and an access layer;

Fig.5a

a front view of the height-adjustable side rail system from Fig. 5 without the second and third frame elements;

Fig. 6

a front view of the height-adjustable side rail system from 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 rail system from Fig. 6 without the second and third frame elements;

Fig.7

an actuating element of the height-adjustable side rail system arranged in a locked position Fig.1-6a ;

Fig.7a

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 from Fig. 8 with two side rail systems each arranged in the securing position and having second and third frame elements and

Fig. 10

a front view of the bed frame from Fig. 8 and 9 with two side rail systems each arranged in the access position and having second and third frame elements.

In Fig. 1 a height-adjustable side rail system 1 is shown 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.

The first frame element 2 has two first adjusting elements 5 which are adjustable in the direction of a longitudinal axis L1 of the first frame element 2 and are arranged at a distance from one another. On the second frame element 3, two second adjusting elements 6 are provided which are adjustable in the direction of a longitudinal axis L2 of the second frame element 3 and are arranged at a distance from one another. Furthermore, the third frame element 4 has two third adjusting elements 7 which can be adjusted in the direction of a longitudinal axis L3 of the third frame element 4 and are arranged at a distance from one another (cf. Fig. 4a ).

The height-adjustable side rail system 1 has two, the first and second frame elements 2, 3 first lever systems 8 which connect to one another and are arranged at a distance from one another, and two second lever systems 9 which connect the second and third frame elements 3, 4 to one another and are arranged at a distance from one another.

The frame elements 2, 3, 4 are cylindrical and have 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 each arranged at a distance from one another and each extend in a main plane H of the side rail system 1.

The first lever systems 8 point as in Fig. 4a , 5a and 6a shown, each have a first and a second articulated lever 11, 12 that are articulated to one another and the second lever systems 9 each have a third and a fourth articulated lever 13, 14 that are articulated to one another. The first articulated lever 11 is connected in an articulated manner 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 articulated lever 12 is connected in an articulated manner 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 articulated lever 13 is articulated 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 articulated 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.

The first and second articulated levers 11, 12 and the third and fourth articulated levers 13, 14 of one of the lever systems 8, 9 are each rotatably mounted on a connecting element in the form of a hinge pin 23 so that they can rotate relative to one another about a pivot axis S of the lever system 8, 9. On the hinge pins 23, the first and second hinge levers 11, 12 and the third and fourth hinge levers 13, 14 each have one degree of freedom. The first and second lever systems 8, 9 are also designed identically. All articulated levers 11, 12, 13, 14 are designed to be identically double-curved and have one on the pivot axis S of the respective lever system 8, 9 arranged point of symmetry SP. The articulated levers 11, 12, 13, 14 have two bending points 24 and are point-symmetrical to the point of symmetry SP, so that the articulated levers 11, 12, 13, 14 have an S-shaped shape. The connecting sections 15, 17, 19, 21 and the coupling sections 16, 18, 20, 22 are each arranged bent perpendicularly from 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 to a mirror plane SE running perpendicular to the main plane H and through the pivot axis S of the lever system 8, 9.

The frame elements 2, 3, 4 each have a channel-like cavity 26 for displaceably receiving 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 on. The channel-like cavity 26 extends in the longitudinal axis direction of the frame elements 2, 3, 4 between two frame element end faces 28. The latter each describe the final cross-sectional areas of the frame elements 2, 3, 4. The cavity 26 is in each case in the radial direction to the longitudinal axis L1, L2, L3 of the frame element 2, 3, 4 is partially enclosed by an inner wall 50 of the frame element 2, 3, 4.

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 arranged on the contact surface 29 of the second frame element 3. The recesses 27 are the free area 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.

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 elevations of the inner wall 50 projecting into the cavity 26. The guide 31 extends in the longitudinal axis direction of the frame element 2, 3, 4 between the Frame element end faces 28.

Furthermore, the frame elements 2, 3, 4 each have two end pieces 32 which close the end of the cavity 26 and have projections 50 which project 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 positive connection with the inner wall 28 of the frame element 2, 3, 4.

The first and second frame elements 2, 3 and the second and third frame elements 3,4 are articulated to one another via the first or second lever systems 8, 9 in such a way that the distance between the frame elements 2, 3, 4 from one another can be changed. On the coupling sections 16, 18, 20, 22, the articulated levers 11, 12, 13, 14 are each arranged in a stationary manner on the frame elements 2, 3, 4 and are connected to the frame elements 2, 3, 4 in a pivoting manner. At the connecting sections 15, 17, 19, 22, the articulated levers 11, 12, 13, 14 are each arranged in a stationary manner on the adjusting elements 5, 6, 7 and are pivotally connected to the adjusting elements 5, 6, 7. The adjusting elements 5, 6, 7 are each in the longitudinal axis direction of the frame elements 2, 3, 4 between one in Fig. 4a The initial situation shown and one in Fig. 6a adjustable end position shown.

An adjustment of the adjusting elements 5, 6, 7 relative to one another from the starting position to the end position causes a distance-changing adjustment of the second and third frame elements 3, 4 relative to one another and relative to the first frame element 2 between an in Fig. 4, 4a security situation shown and one in Fig. 6, 6a access position shown. In the securing position, the second frame element 3 and the third frame element 4 are at a greater distance from one another and from the first frame element 2 than in the access position, so that the side rail system 1, viewed in the perpendicular direction to the longitudinal axes L1, L2, L3, is a first in the securing position Has height H1 and in the access position has a lower second height H2 compared to the first height H1. The height of the side rail system is understood to mean the distance between outer surfaces 30 of the first and third frame elements 2, 4. The side rail system has a first height H1 of 165 mm and a second height H2 of 440 mm.

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 between a movement of the third adjusting elements 7 in the direction of the longitudinal axis L3 of the third frame element 4, in Fig. 7a shown release position and the movement of the third adjusting elements 7 blocking, in Fig. 7 Adjustable locking position shown. In addition, the actuating elements 33 are designed identically and each have a fastening section 34 and an actuating section 35 connected to the fastening section 34. The fastening section 34 is arranged in a stationary manner on the third frame element 4 by means of a screw connection. The actuating section 35 is connected in one piece to the fastening section 34 and is designed as a push button.

The actuating elements 33 are arranged at a distance from one another on the third frame element 4 in such a way that the third adjusting elements 7 arranged in the starting position are each connected in the blocking position to the actuating section 35 of the actuating elements 33 via a blocking element 36 arranged on the third adjusting elements 7. This blocks the adjustment of the frame elements 2, 3, 4 relative to one another in the securing position. In the release position, the connection of the blocking element 36 to the actuating element 33 is released, so that the third adjusting elements 7 and, through the connection by means of the lever systems 8, 9, the first and second adjusting elements 5, 6 are released for adjustment between the starting position and the end position. By means of spring elements 37 arranged on the third adjusting elements 7, the blocking elements 36 are biased in the direction perpendicular to the main plane H of the side rail system 1 in the direction of the actuating element 33, so that a spring preload of the actuating element 33 is effected in the direction of the blocking position.

To adjust the height of the side rail system 1, the actuating elements 33 are adjusted by a user from the locking position to the release position. The adjusting elements 5, 6, 7 are each adjusted relative to one another, that is, each adjusted in the longitudinal axis direction of the frame elements 2, 3, 4 between the starting 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 relative to the first frame element 2 and that third frame element 4 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 rail system 1 from the in Fig. 4, 4a the securing position shown in Fig. 6, 6a access position shown is adjusted.

Here, the actuating elements 33 can be operated by the user simultaneously or separately. The simultaneous actuation of both actuating elements 33 enables a synchronous adjustment of the two first, second and third adjusting elements 5, 6, 7, which causes the longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 to be aligned parallel to one another.

The separate actuation of the actuating elements 33 enables an asynchronous adjustment of the two first, second and third adjusting elements 5, 6, 7, i.e. that only one of the first, one of the second and one of the third adjusting elements 5, 6, 7 towards the other first, second or third adjusting element 5, 6, 7 is adjustable in the longitudinal axis direction of the frame element 2, 3, 4, whereby an inclination of the longitudinal axes L1, L2, L3 of the frame elements 2, 3, 4 to one another can be effected. For the asynchronous adjustment, the joint bolts 23 of the lever systems 8, 9 must be loosened, whereby the joint levers 11, 12, 13, 14 of the lever systems 8, 9 can only be connected via the connection to the adjusting elements 5, 6, 7 and the connection to the Frame elements 2, 3, 4 are mechanically connected to one another.

A protective element 38 is arranged on the first frame element 2 and the third frame element 4 (cf. Fig. 2 ). The protective elements 38 each have a cross section extending in the longitudinal axis direction of the frame element 2, 4 between the frame element end faces 28. In the securing position, the protective elements 38 protrude into a free space formed between the first and second frame elements 2, 3 and between the second and third frame elements 3, 4. In the access position, the protective elements 38 cover a side wall 39 of the second frame element 3.

Furthermore, on the first frame element 2 there are three connecting elements arranged at a distance from one another in the longitudinal axis direction L1 of the first frame element 2 Form of c-shaped clamp elements 40 for arranging the side rail system 1 on a lying surface 41 of a bed frame 42. The clamp elements 40 are arranged in a stationary manner via a screw connection on the first frame element 2 and can be connected to the lying surface 41 via a pin element in the form of a screw 44 which interacts with a nut 45.

This in Fig. 6 to 8 Bed frame 42 shown has, in addition to the 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, 49 being able to be adjusted relative to one another. 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 around the area of the leg segment at a distance from the first side rail system 1.

The third - in the position of use on the bed frame 42 - upper frame element 4 is arranged above the first - in the position of use on the bed frame 42 - lower frame element 2 and above the second - in the position of use on the bed frame 42 - middle frame element 3. The upper and middle frame elements 3, 4 are fixed relative to the lower frame element 2 arranged on the bed frame 42 between the in Fig. 9 The security situation shown and in Fig. 10 Access position shown can be moved. The actuating elements 33 are therefore arranged on the upper frame element 4 - based on the position of use.

Through the articulated connection of the lever systems 8, 9 with the frame elements 2, 3, 4 and the adjusting elements 4, 6, 7, a reliable height adjustment of the side rail system 1 can be made possible in a simple and quick manner, thereby enabling flexible and mobile use of the side rail system 1 and / or the bed frame 42 is made possible.

All features explained in connection with the individual embodiments of the invention can be provided in different combinations in the height-adjustable side rail system 1 in order to simultaneously realize their advantageous effects, even if they are described in different embodiments have been.

The scope of protection of the present invention is given by the claims and is not limited by the features explained in the description or shown in the figures.

Reference symbol list

1

Side rail system

2

first/lower frame element

3

second/middle frame element

4

third/upper frame elements

5

first adjustment element

6

second adjustment element

7

third adjustment element

8th

first lever system

9

second lever system

10

Cross section of the frame element

11

first articulated lever

12

second articulated lever

13

third joint lever

14

fourth articulated lever

15

first connection section

16

first coupling section

17

second connection section

18

second coupling section

19

third connection section

20

third coupling section 21 fourth connection section

22

fourth coupling section

23

Connecting element/joint bolt

24

bending point

25

Basic section

26

cavity

27

Recess/elongated hole

28

Frame element end face

29

Contact surface of the frame element

30

Outer surface of the frame element

31

Leadership/Elevation

32

End piece

33

Actuator

34

Fastening section

35

Operating section

36

Blocking element

37

Spring element

38

Protective element

39

Side wall

40

Connection element/clamp element

41

Lying area

42

bed frame

43

head Start

44

Screw/pin element

45

Mother

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 level of the side rail system

H1

first height of the side rail system

H2

second height of the side rail system

S

Pivot axis of the lever system

SE

mirror plane

SP

Point of symmetry of the articulated lever

Claims (12)

Height-adjustable side rail system for a bed frame, with - a first frame element (2) with two first adjusting elements (5) which can be adjusted in the longitudinal axis direction of the first frame element (2) and are arranged at a distance from one another, - a second frame element (3) arranged at a distance from the first frame element (2) with two second adjusting elements (6) which are adjustable in the longitudinal axis direction of the second frame element (3) and arranged at a distance from one another, and - two lever systems (8, 9) which connect the frame elements (2, 3) to one another and are arranged at a distance from one another 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), whereby - the first articulated lever (11) is connected in an articulated manner via a first connecting section (15) to the first adjusting element (5) and via a first coupling section (16) to the second frame element (3) and - the second articulated lever (12) is connected in an articulated manner via a second connecting section (17) to the second adjusting element (6) and via a second coupling section (18) to the first frame element (2), that an adjustment of the adjusting elements (5, 6) of the frame elements (2, 3) to one another 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. Height-adjustable side rail system according to claim 1, characterized in that the first and second articulated levers (11, 12) are articulated to one another in such a way that a parallel alignment of the longitudinal axes (L1, L2) of the Frame elements (2, 3) are effected relative to one another. Height-adjustable side rail system according to one or more of the preceding 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), the actuating elements ( 33) between one each - the movement of the adjusting elements (5, 6) in the direction of the longitudinal axis (L1, L2) of the first or second frame element (2, 3) release position and - The movement of the adjusting elements (5, 6) blocking locking position can be adjusted. Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the articulated levers (11, 12) are mounted on a connecting element (23) so that they can rotate relative to one another about a pivot axis (S) of the lever system (8, 9). Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the frame elements (2, 3) - a channel-like cavity (26) for movable accommodation of the adjusting elements (5, 6) and - Have a recess (27) penetrated by the articulated levers (11, 12). Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the frame elements (2, 3) each have a guide (31) arranged in the cavity (26) and cooperating with the adjusting elements (5, 6). Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the actuating elements (33) are biased towards the locking position, preferably spring-biased. Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the articulated levers (11, 12) are designed to be at least double curved and have a point of symmetry (SP) arranged on the pivot axis (S) of the lever system (8, 9). Height-adjustable side rail system according to one or more of the preceding 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 spaced apart in the longitudinal axis direction of the third frame element (4). arranged third adjusting elements (7), the second lever systems (9) each having a third and a fourth articulated lever (13, 14), whereby - the third articulated lever (13) is connected in an articulated manner via a third connecting section (19) to the first or second adjusting 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 adjusting element (7) and via a fourth coupling section (22) to the first or second frame element (3, 4), that an adjustment of the adjusting elements (5, 6, 7) of the frame elements (2, 3, 4) to one another causes a distance-changing adjustment of the frame elements (2, 3, 4) to one another. Height-adjustable side rail system according to one or more of the preceding claims, characterized in that the first or second frame element (2, 3) and the third frame element (4) have a protective element (38). Height-adjustable side rail system according to one or more of the preceding claims, characterized in that on the first frame element (2) at least one, preferably two, particularly preferably at least three connecting elements (40), in particular clamp elements for arranging a lying surface (41) are arranged. 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.

Images