EP2589362B1 - Bed, in particular hospital or home care bed - Google Patents

Description

The invention relates to a bed, which is in particular a hospital or a nursing bed.

There are nursing and hospital beds for elderly and dependent persons as well as sick people, which have height-adjustable underframes and adjustable mattress pads. These beds provide the maximum comfort for the people or patients as well as the hospital or nursing staff.

However, depending on the degree of immobility of the person using such a bed, it can be cumbersome to get out of bed without help. Because the person must first move to a position in which she sits with the buttocks and possibly the thighs on the side edge of the bed to then get up.

To facilitate getting up from a bed it is off JP-A-2000042053 and US-A-2004/0226093 known to laterally displace the back portion and the seat portion of the mattress overlay relative to the lower leg portion of the mattress overlay, over either one of the two side portions of the bed frame. In the laterally moved-out state of the back part and the seat part of the mattress support device, it is necessary to support the seat surface part or a lateral support of the underframe or bed frame in order to prevent the risk of lateral tilting of the bed.

Out WO-A-2008/087288 . WO-A-2008/090278 and WO-A-2008/087289 It is also known, the lower leg portion of the mattress support device of a bed opposite the back and seat parts of the mattress support device to move laterally beyond the bed frame. Furthermore, it is from the aforementioned writings as well as from DE-A-288 612 and US-A-4,805,246 Known to pivot the lower leg portion of the mattress support device of a bed laterally about a vertical axis relative to the remaining part of the bed or the lower leg part in two parts, both parts are arranged on both sides of the central longitudinal axis of the bed and each articulated about a vertical axis with the remaining part (headboard side Area) of the bed are connected.

Further, it is for example EP-B-0 744 934 known to pivot the lower leg portion of the mattress pad of a hospital or nursing bed down to, as in the aforementioned known beds described above, to be able to get over the foot of the bed out.

Modern hospital or nursing beds have a particular height-adjustable base on which the bed frame is supported and which usually has four legs, which rest on the ground. The headboard-side legs form the headboard-side end of the undercarriage, while the Fußteilseitigen legs define the Fußteilseitige end of the base frame. These lying in the longitudinal extent of the bed ends of the base must not exceed a certain maximum distance from the headboard or footboard of the bed frame for safety reasons; otherwise there would be a risk that the bed could tip over onto the head or foot part when subjected to vertical loads. As a rule, the lower leg part of the mattress support device of such beds has such a large extent between the foot part of the bed frame and the seat part of the mattress support device that the connection plane between the lower leg part and the seat part is arranged above the lower frame between its two ends. Lower leg parts with such an extent in the longitudinal direction of the bed are comfortable, namely to be able to support in adults regardless of the size of the person, the entire lower leg from the knee joint through the lower leg part.

If you move laterally in the previously described known hospital or nursing bed, the lower leg part or pivot in any other way with respect to the remaining part of the bed, lose weight or the like. In order to make it easier for the person lying in bed to get up from the bed over the foot, footrest side portions of the underframe would still be in the way.

Finally it is over JP 03 063329 U . EP-A-0 178 951 and WO-A-2005/027813 known, in a bed having a foot, which does not rise above the lying surface, ie, for example, no upstanding plates o, the like. Frame or frames to move the mattress support device relative to the bed placed over the foot until the lower leg portion of the mattress support device protrudes over the foot and facing down. In this position, the backrest can be raised and tilted the seat part forward, which is the situation like a chair with stand-up help.

Out EP-A-2 181 684 and WO-A-2010/060717 various variants of a bed are known, the foot can be moved away from the rest of the bed to then comfortably from the bed (namely, on the lower end) to get up or be able to sit in the bed.

The object of the invention is therefore to provide a bed, in particular hospital or nursing bed, which can be moved in a simple manner in a position in which the raising from the bed and settling in the bed over the foot is easily possible ,

• einem Bettrahmen, der zwei Seitenteile an den Lateralseiten, ein Kopfende und ein Fußende aufweist,
• einer Matratzenauflagevorrichtung, die ein verstellbares Rückenteil, ein Sitzflächenteil und ein verstellbares Unterschenkelteil aufweist, und
• einem Untergestell unter dem Bettrahmen, wobei das Untergestell ein dem Fußende zugewandtes fußendeseitiges Ende und ein dem Kopfende zugewandtes kopfendeseitiges Ende aufweist,
• wobei die Matratzenauflagevorrichtung längs einer im Wesentlichen parallel zum Fuß- und Kopfteil des Bettrahmens verlaufende Unterteilungsebene in einen fußendeseitigen Teil und einen kopfendeseitigen Teil trennbar ist,
• wobei der Bettrahmen längs einer im wesentlichen parallel zur Unterteilungsebene der Matratzenauflagevorrichtung verlaufenden Unterteilungsebene in einen fußendeseitigen Bettrahmenteil sowie einen kopfendeseitigen Bettrahmenteil trennbar oder getrennt ist,
• wobei das fußendeseitige Teil zumindest der Matratzenauflagevorrichtung wahlweise an deren kopfendeseitigem Teil arretierbar oder relativ zu diesen bewegbar ist,
• wobei der Bettrahmen und das Untergestell relativ zueinander in einer zu den Seitenteilen des Bettrahmens parallelen Längsrichtung insbesondere motorisch längsverschiebbar sind, und zwar zwischen einer ersten und einer zweiten Relativverschiebungsposition,
• wobei sich in der ersten Relativverschiebungsposition die Unterteilungsebene der Matratzenauflagevorrichtung im Bereich zwischen den fußendeseitigen und kopfendeseitigen Enden des Untergestells befindet,
• wobei in der zweiten Relativverschiebungsposition die Unterteilungsebene der Matratzenauflagevorrichtung mit dem fußendeseitigen Ende des Untergestells im Wesentlichen fluchtet oder sich zwischen dem fußendeseitigen Ende des Untergestells und dem Fußende des Bettrahmens befindet,
• wobei die fußendeseitigen Teile der Matratzenauflagevorrichtung und des Bettrahmens seitlich über die Lateralseiten des Bettrahmens hinaus verschiebbar sind, wobei der fußendeseitige Teil der Matratzenauflagevorrichtung seitlich verschiebbar an deren kopfendeseitigem Teil geführt ist.

To solve this problem, a bed is proposed with the invention, which is in particular a hospital or nursing bed and which is provided with

• a bed frame having two lateral sides on the lateral sides, a head end and a foot end,
• a mattress support device having an adjustable back, a seat portion and an adjustable lower leg portion, and
• an underframe under the bed frame, the underframe having a foot end end facing the foot end and a head end side facing the head end,
• wherein the mattress overlay device is separable into a footer-side part and a head-end part along a subdivision plane extending substantially parallel to the foot and head part of the bed frame,
• wherein the bed frame is separable or separated along a dividing plane substantially parallel to the dividing plane of the mattress supporting device into a foot-side bed frame part and a bed-side bed frame part;
• wherein the foot-end-side part of at least the mattress support device is selectively lockable to or movable relative to the headend-end part thereof,
• wherein the bed frame and the base are in particular longitudinally displaceable in a longitudinal direction parallel to the side parts of the bed frame, in particular, in a motor-driven manner, between a first and a second relative displacement position,
• wherein, in the first relative shift position, the dividing plane of the mattress overlay device is in the area between the foot-end and head-end ends of the undercarriage,
• wherein, in the second relative shift position, the dividing plane of the mattress overlay device is substantially flush with the foot-end side end of the undercarriage or is located between the foot-end-side end of the undercarriage and the foot end of the bed frame,
• wherein the Fußendeseitigen parts of the mattress support device and the bed frame are laterally displaceable beyond the lateral sides of the bed frame, wherein the Fußendeseitige part of the mattress support device is laterally slidably guided at the Kopfendeseitigem part.

• dass das fußendeseitige Teil der Matratzenauflagevorrichtung mittels mindestens zweier teilbarer Verbindungselemente mit dem kopfendeseitigen Teil der Matratzenauflagevorrichtung verbunden ist,
• dass jedes Verbindungselement ein an dem fußendeseitigen Teil der Matratzenauflagevorrichtung angebrachtes erstes Verbindungselementteil und ein an dem kopfendeseitigen Teil der Matratzenauflagevorrichtung angebrachtes zweites Verbindungselementteil aufweist, und
• dass beide Verbindungselementteile jedes Verbindungselements durch Verschieben längs einer im Wesentlichen quer zur Längserstreckung des Betts verlaufenden Verbindungselement-Achse, die an einem Verbindungselementteil angeordnet und an der der andere Verbindungselementteil gehalten oder geführt ist, trennbar und koppelbar sind.

In this bed is provided according to the invention,

• the foot-end-side part of the mattress support device is connected to the head-end-side part of the mattress support device by means of at least two separable connecting elements,
• in that each connection element has a first connection element part attached to the foot-end-side part of the mattress support device and a second connection element part attached to the head-end-side part of the mattress support device, and
• in that the two connecting element parts of each connecting element can be separated and coupled by displacement along a connecting element axis extending essentially transversely to the longitudinal extent of the bed, which is arranged on one connecting element part and on which the other connecting element part is held or guided.

• dass der fußendeseitige Teil der Matratzenauflagevorrichtung mittels mindestens zweier Gelenke mit im wesentlichen parallel zu den Unterteilungsebenen und quer zur Längsverschiebungsrichtung von Bettrahmen und Untergestell verlaufenden Gelenkachsen gelenkig mit dem kopfendeseitigen Teil der Matratzenauflagevorrichtung verbunden ist, und
• dass die Gelenke durch Verschiebung längs ihrer Gelenkachsen trennbar sind.

Preferably, it is provided in the bed according to the invention,

• in that the foot-end-side part of the mattress support device is pivotally connected to the head-end-side part of the mattress support device by means of at least two joints with hinge axes extending substantially parallel to the subdivision planes and transverse to the longitudinal displacement direction of the bed frame and underframe;
• that the joints are separable by displacement along their axes of articulation.

In its preferred embodiment, the bed according to the invention comprises a two-part mattress support device and a two-part bed frame, between which the mattress support device or the bed frame can be separated. Serve for this purpose in particular with respect to the connection of the two parts of the mattress support device, in particular as two joints formed, separable fasteners. In the case of joints whose joint parts, which are connected to the two parts of the mattress support device or integrally formed therewith, can be moved along the hinge axes. This is the separation of the foot end the bed (ie the Fußendeseitigen parts of the mattress support device and the bed frame) by first a lateral displacement, ie a displacement transverse to the longitudinal direction of the bed, and a subsequent movement in the longitudinal direction of the bed, Basically, the connecting elements according to the invention need not necessarily have a joint function. If the separation of the mattress support device provided according to the invention can take place between two articulated parts, then the separable connecting elements should be designed as joints. In accordance with the invention separation of the mattress support device in a "rigid" area thereof connect the connecting elements, the two parts of the mattress support device rigidly together.

In the case of the formation of a connecting element as a joint, such a joint, for example, two joint parts and a laterally projecting from one of the two joint parts (in particular fixed) hinge axis as a bolt, on or on the then the other joint part having a corresponding bore , postponed. Conversely, of course, the joint part can be inserted with the protruding bolt in the bore of the other joint part.

In another embodiment of the connection of the two parts of at least the mattress support device is provided that each joint has a substantially C-shaped profile part which is arranged on the one of the two parts of the mattress support device, and one of the substantially C-shaped profile part, having substantially cylindrical profile part which is arranged on the other of the two parts of the mattress support device and is displaceably guided in the substantially C-shaped profile part.

It is expedient if the axis of the joint or the rigid connecting element between the two parts of the mattress support device extends above the side parts of the bed frame.

In a further advantageous embodiment of the invention can be provided that the two parts of the bed frame are connected by at least two joints, each of which has a substantially C-shaped profile part which is arranged on the one of the two parts of the bed frame, and one of the substantially C-shaped profile part received, having substantially cylindrical profile part, which is arranged on the other of the two parts of the bed frame and is guided displaceably in the substantially C-shaped profile part.

By itself, the bed according to the invention requires only a separable connection between the parts of the mattress support device. The two parts of the bed frame (Fußendeseitiger and Kopfendeseitiger part) strictly speaking, no connection when bed frame and base are in their second relative displacement position. In the first relative connection position, both of the aforementioned parts of the bed frame are supported by the base frame. A support of the Fußendeseitigen part of the bed frame (and thus supported by this foot end side of the mattress support device) in the second relative displacement position of the bed frame and base can be realized in that the Fußendeseitige part of the bed frame itself via support legs (at least three not along a common straight line arranged support legs or else preferably four support legs) or by separable connecting elements (for example, also joints) is connected to the head end-side part of the bed frame.

It should be emphasized at this point that the joints described above are not necessarily articulated connecting element parts. Generally speaking, the joints described above in their Connection state can be rigid fasteners. These connecting elements are only expediently additionally designed as joints. In that regard, the use of the term "joint" in the foregoing and in particular in the claim form generally as (rigid or articulated) divisible connecting element is to be understood.

In a further advantageous embodiment of the invention it is provided that each joint has a structural extension in the longitudinal displacement direction of the respective connected by the hinge parts of the mattress support device and optionally the bed frame and that the distance between two adjacent joints is greater than the structural extension.

Accordingly, it is accordingly provided according to the invention that the bed frame is slidably mounted in the longitudinal extent of the bed relative to the particular height-adjustable base frame. For then, to use the bed as seating (i.e., as an exit aid over the foot), it is initially possible to move the bed frame and base relative to one another until the subdivision levels of the bed frame and mattress cover are outside the area occupied by the base. This Relativverschiebbarkeit of bed frame and base frame in the second relative displacement position is advantageously motorized. Starting from this position, the foot end of the bed can now be displaced laterally from its remaining part to the separation, in order subsequently to move the foot end longitudinally or to move it off.

The starting point of the invention is therefore a bed with a bed frame, which if necessary with a head part and a foot end, if necessary, with a foot part has two side parts on the lateral sides. Supported on the bed frame is a mattress support device which is formed in three or four parts and adjustable. The mattress support device has at least one adjustable back part and an adjustable lower leg part and between both a fixed or movable or partially movable seat part. According to an advantageous development of the invention, the seat part can have two parts, namely a thigh part and a seat or seat part. The thigh part is suitably adjustable and hinged to the seat part.

The bed frame is supported by a subframe, which is delimited in the longitudinal extent of the bed by a foot-side and a head-side end. In general, the base rests on head and foot support means on the ground. The subframe can be moved, i. be equipped with roles, but this is not mandatory. Furthermore, the underframe can be expediently height-adjustable,

In a normal nursing bed, neither the bed frame nor the mattress support is divided such that a part of the bed frame can be moved away from the remaining bed frame part or part of the mattress cover from the remaining part of the mattress cover. However, this is now possible according to the invention in that both the mattress support device and the bed frame can be separated or separated along a respective subdivision plane into a foot-end part and into a head-end part. The two subdivision levels, to the two sides of the head and Fußendeseitigen parts (hereinafter referred to as head or fußteilseitigem part) are arranged, can coincide or run parallel to each other at a small distance.

Furthermore, according to the invention, the above-mentioned Relativverschiebungsmöglichkeit between bed frame and base is provided. When the nursing bed is used as a normal bed, the bed frame and underframe are in a first relative displacement position. In this first relative displacement position is the subdivision plane of the mattress overlay (and, as a rule, the subdivision plane of the bed frame, which is thus spaced from one another in the invention be or may coincide) in the area between the foot and headboard side ends of the undercarriage. In order to comfortably get out of bed or to be able to sit comfortably in the bed when the footrest-side parts of bed frame and mattress support device move away, it is provided according to the invention to move the bed frame and underframe relative to each other to the second relative displacement position in which the subdivision plane of the mattress support device (and optionally also the subdivision plane of the bed frame) is outside the area occupied by the subframe. In this relative displacement position, the lower leg part facing the end of the seat portion of the mattress support device is at the level, in front of or behind the fußteilseitigen end of the undercarriage. In any case, the position of the seat portion is such that now to get up from the bed no areas of the Fußteilseitigen end of the base frame are more in the space below the lower leg portion facing the front edge of the seat part, leaving the bed or in the bed seated person needed.

In other words, in the second relative shift position, the subdivision plane of the mattress support device is substantially aligned with the foot part end of the undercarriage. In this case, "essentially in alignment" means that the subdivision plane is located directly above the foot part-side end of the subframe or slightly before it or slightly behind it. When placed in front of the Fußteilseitigen end of the base frame, the subdivision level of the mattress support device between the Fußteilseitigen end of the base frame and the foot part of the bed frame, while the subdivision level of the mattress support device in the position behind the Fußteilseitigen end of the underframe between this Fußteilseitigen end and the headboard end of the Underframe is located,

There are various possibilities, the Fußteilseitige parts of mattress support device and bed frame together so relative to the rest To move bed, that the exit from the bed on the (now out of the way) foot of the bed is possible. In order to rise from the bed, the back and seat portions may be placed in a chair-like position, whereby the seat portion may be tilted slightly upwardly to further assist in erecting to support the lower legs in the popliteal region. In addition, as a further stand-up the thus forming chair or armchair can be tilted by tilting the bed frame forward. Such stand-up aids are basically known from chairs or armchairs ago. What is new, however, is the integration of these stand-up aids in a conventional bed. The foot-end portions of the mattress overlay and bed frame are first displaced laterally beyond the lateral sides of the bed frame until the fasteners (particularly as hinges) are disengaged to allow the foot-end portions of the mattress overlay and bed frame to move longitudinally so as to move have no connection to the remaining parts of mattress pad and bed frame. In this case, the Fußteilseitige parts of mattress support device and bed frame should also rest on their own support legs.

It is useful if the Fußendeseitige part of the bed frame has its own support to the ground on which rests the entire bed has. Such a support may be legs with casters that facilitate movement of the foot-end portions of the mattress overlay and bed frame over the ground. The support of the Fußteilseitigen part of the bed frame acts in a height-adjustable base frame in particular when the base is in its minimum height. The support of the Fußendeseitigen part of the bed frame relative to the ground is particularly useful when taking the second relative displacement position of the bed frame and base. If the bed or, if the bed frame and the base take a different relative displacement position, so the support elements or the support are also canceled, which can be done for example by folding or removing the support.

For safety reasons, it is expedient if the bed according to the invention can only be raised when equipped with a height-adjustable underframe when the bed frame and underframe occupy the first relative displacement position. Then namely the bed frame is supported with maximum stability on the ground. In other words, the height adjustability of the underframe is released only in the first relative shift position of bed frame and base. In other words, the longitudinal displaceability of the bed frame and underframe can then be realized only when the underframe is essentially at a minimum height. This statement is also intended to cover the case that the base can be slightly raised in the second relatively displaced position of the bed (and thus fully moved away foot-side parts of mattress support device and bed frame), in such a way that the seat part on one of chairs and armchairs ago known "comfortable" height to get up from the bed and settling on the bed.

Due to the division of the bed frame whose side parts are each formed in two parts and divided into a fußteilseitigen and a headboard side section. For stiffening these side parts of the bed frame in any other than the second relative displacement position of the bed is suitably a stiffening element which extends on both sides of the subdivision level of the bed frame and is immersed in the two sections of the respective side part, if the bed frame and base take a position other than the second relative position , The stiffening elements can be manually operated and thus manually movable. Alternatively, the stiffening elements may also automatically disengage from the two footboard side portions of the side panels of the bed frame when the bed frame and underframe occupy their second relative translational position. For this purpose, the stiffening elements relative to the underframe (or for Bed frame) fixed, which depends on whether the base frame can be moved relative to the bed frame or the bed frame relative to the base frame actively.

Conveniently, the stiffening elements are each formed as a bolt, wherein a receiving channel for receiving the bolt is arranged at both portions of each side part of the headboard side bed frame part respectively a guide channel for guiding the relevant bolt on the fußteilseitigen portion of the side part and wherein the bolts during the relative displacement of the bed frame and Undercarriage are arranged in the guide and receiving channels and located in the second relative displacement position outside of the receiving channels.

So that the Fußendeseitige bed frame part can not be moved unintentionally relative to its Kopfendeseitigen section when the bed frame and base are in their second relative displacement position, it is expedient to provide a locking element, which is in particular manually operated and unlock to move the Fußendeseitige bed frame part laterally can.

The connection between the (respectively) head and Fußendeseitigen parts of mattress support device and possibly bed frame is advantageously carried out by joints, the hinge axes substantially parallel to the subdivision planes and parallel to the ground (ie, usually horizontal). Here offer themselves as joints in particular C-shaped profile parts with encompassed by these cylindrical profile parts. Such a joint advantageously limited by design the pivot angle, which is determined by the opening of the C-shaped profile part and the thickness of a connected to the cylindrical profile part connecting element. About the C-shaped and cylindrical profile parts, the head and Fußteilseitigen parts of the bed frame and mattress support device are each also slidably guided together.

The axis of the joint between the two parts of the mattress support device expediently extends above the side parts of the bed frame.

As already briefly mentioned above, the lower leg part of the mattress support device is pivotally connected to the seat part. If the seat part itself is in two parts and has a thigh part and a seat or seat part, the articulated connection between the lower leg part and the thigh part takes place. The lower leg part rests on the Fußteilseitigen part of the bed frame and is taken when moving the Fußteilseitigen part of the bed frame of this. The lower leg part can be lifted up with entrainment of the thigh part or the seat part and supported in a raised position on so-called support plate. The support plates are expediently designed as a support stand scissors having two transverse to the side parts of the bed frame, intersecting struts, which are slidably and rotatably connected at their ends to the fußteilseitige parts of mattress support device and bed frame and selectively lockable in one of several intersecting inclinations , The transversely mounted Stützstellerschere gives the fußteilseitigen parts of the bed frame and mattress support device a shear-resistant and shear strength connection. Examples of backing plates that can be used for the bed according to the invention are in DE-A-16 54 383 and DE-A-15 54 117 described.

As also already mentioned above, the bed frame can be displaceably mounted on the underframe for transferring the bed from the first relative shift position to the second relative shift position or else the lower frame can be displaceably mounted on the bed frame. In the second case, the base is expediently made variable in length, so it is based on a parallel to the ground (horizontal) plane telescopic. The headboard-side end of the underframe is expediently connected to displacements relative to the bed frame with this, whereas its footboard end is longitudinally slidably coupled to the bed frame. Starting from the first relative displacement position, the underframe is then contracted or contracted, so that, finally, in the second relative displacement position, the footpart end of the underframe substantially aligns with the subdivision plane of the mattress support device (in the stated sense or above).

The above-described lateral displacement of the foot part-side section (hereinafter referred to as the foot) of the bed with subsequent longitudinal movement (and vice versa) is not readily realizable insofar as both the bed frame and the mattress support device must be divided accordingly. With respect to the mattress support device, this offers their Relativverschiebbarkeit between the lower leg part and possibly combined with the seat part thigh part (ie generally seat part), These two parts are usually hinged together, the thigh part is particularly motorized pivot, with the result that the with him articulated lower leg part "dragged" is. The lower leg part is thus raised at pivoting of the thigh part in the region of the joint to the lower leg part.

You could now selectively end this articulated connection or pick up in any other way to laterally move the foot of the bed relative to the rest of the bed. However, this brings with it the difficulty that then in the subsequent backward shifting of the foot end of the articulated connection must be restored, which affects the ease of use significantly adversely.

Therefore, it is provided with respect to the lateral Relativverschiebbarkeit of the foot end of the bed, that the lower leg part is guided laterally displaceable on the seat surface part of the mattress support device, which by the interaction a first guide profile element is realized on either the seat surface part or the lower leg part and a first bearing element and the first connecting element on the lower leg part or seat part, the first bearing element being longitudinally displaceable in the first guide profile element and the first connecting element extending through a lateral opening in the first guide profile element is connected to the lower leg part or seat part of the mattress support device. In this case, the said opening is dimensioned such that its edges located in the circumferential direction about the hinge axis does not affect the pivotability of thigh and lower leg part in the desired Verschwenkungsmaße.

In other words, therefore, the thigh part and the seat part (or the thigh part and the seat part of a two-part seat part) are connected to each other by a hinge, which in addition to the pivotability also allows lateral displacement of the two (Fußende- and Kopfendeseitigen) parts of the mattress support device.

The two head and Fußteilseitigen parts of the bed frame (foot and the rest of the bed frame (hereinafter also referred to simply head end called) can be slidably guided to each other Here, either the foot or the remaining part of the bed frame on a second guide profile, in which a second The longitudinal displaceability of this connection of the two parts of the bed frame is thus solved similarly as above in connection with the connection However, it is not necessarily also necessary for the connection of the two bed frame parts to be able to pivot it. as described above in connection with the connection of the thigh part and lower leg part of the mattress support device.

The pivotability of the laterally displaceable articulated joint of thigh part and seat part is expediently realized in that the first guide profile element has a C-shaped profile, which surrounds the first bearing element, which is designed as a cylindrical body. Through the opening of the C-profile, the connecting element can then be guided between the first bearing element and the corresponding other part of the mattress support device. Here, the opening over the entire length of the first guide profile element is designed to extend, as is the case with C-shaped profiles or other profiles which have a slot or the like opening.

But it is also also possible to have the required for the articulated and laterally displaceable connection of thigh and seat part opening in the first guide profile element in front ends of its end. These ends of the opening then serve as stops to limit the lateral displacement of both parts.

The advantage of the construction according to the invention, in which it is generally provided that the foot of the bed frame can be at least partially moved away, is the fact that the person lying in bed can now stand up much easier. Because after taking away the foot of the person lying in bed automatically takes a seated position with appropriate Hochverschwenkung the backrest portion of the mattress support device. If the laterally shifted foot end is also provided with safety side parts, as is customary in the case of hospital or nursing beds, the person standing upright from the bed can rest on these raised safety side parts, with their one hand moving the safety side part facing away from them Foot and with the other hand the safety side part, which is on the other Long side of the bed frame is located next to the pelvic area of the person takes. These two safety side parts can therefore be used in the manner of chair backs, both when rising from the bed and when lowering onto the bed to take a seated posture. As an alternative, support rests can be attached to the sides of the seat part (eg by attaching them).

• einem Bettrahmen, der zwei Seitenteile an den Lateralseiten, ein Kopfteil am Kopfende und ein Fußteil am Fußende aufweist,
• einer Matratzenauflagevorrichtung, die ein verstellbares Rückenteil, ein Sitzflächenteil und ein verstellbares Unterschenkelteil aufweist, und
• einem Untergestell unter dem Bettrahmen, wobei das Untergestell ein dem Fußende zugewandtes fußteilseitiges Ende und ein dem Kopfende zugewandtes kopfteilseitiges Ende aufweist,
• wobei die Matratzenauflagevorrichtung der Bettrahmen jeweils in einen fußteilseitigen Teil und einen kopfteilseitigen Teil unterteilt sind, die beidseitig von zueinander parallelen und versetzen oder miteinander zusammenfallenden Unterteilungsebenen, die im wesentlichen rechtwinklig zur Längserstreckung des Betts verlaufen, angeordnet sind, und
• wobei Bettrahmen und Untergestell in Längserstreckungsrichtung des Betts derart relativ zueinander seitlich und anschließend (und umgekehrt) verschiebbar/verfahrbar sind, dass die Unterteilungsebene(n) durch das Untergestell oder außerhalb des Untergestells bzw. in Höhe des fußteilseitigen Endes des Untergestells verläuft/verlaufen.

In its most general form, the invention thus relates to a hospital or nursing bed, which is provided with

• a bed frame having two lateral sides on the lateral sides, a head part at the top end and a foot part at the foot end,
• a mattress support device having an adjustable back, a seat portion and an adjustable lower leg portion, and
• an underframe under the bed frame, the underframe having a foot-side end facing the foot end and a head-end facing the head end,
• wherein the mattress support device of the bed frames are each divided into a Fußteilseitigen part and a headboard side part, which are arranged on both sides of mutually parallel and offset or coincident subdivision planes which extend substantially perpendicular to the longitudinal extent of the bed, and
• wherein bed frame and underframe in the longitudinal direction of the bed are relative to each other laterally and then (and vice versa) displaced / movable, that the subdivision level (s) by the underframe or outside of the undercarriage or at the level of the Fußteilseitigen end of the undercarriage runs / run.

Fig. 1

in Seitenansicht und schematisch ein Kranken- oder Pflegebett mit längs vertikaler Ebenen getrennten Bettrahmen und getrennter Matratzenauflagevorrichtung, wobei der Bettrahmen in seiner Normalverschiebungsposition relativ zum Untergestell gezeigt ist,

Fig. 2

das Bett gemäß Fig. 1 ebenfalls in Seitenansicht, wobei jedoch der Bettrahmen gegenüber dem Untergestell nun so weit verschoben ist, dass die Unterteilungsebene zumindest der Matratzenauflagevorrichtung außerhalb des vom Untergestell eingenommenen Bereichs liegt,

Fig. 3

das Bett gemäß Situation nach Fig. 1 in der Trendelenburg-Stellung,

Fig. 4

das Bett gemäß Situation nach Fig. 1 in der Anti-Trendelenburg-Stellung,

Fign. 5 und 6

Draufsichten auf das Bett in den Positionen gemäß der Fign. 1 und 2,

Fig. 7

eine Draufsicht auf das Bett in dessen Verschiebungsposition gemäß Fig. 2, wobei das Fußende des Betts (fußteilseitiger Teil des Bettrahmens und der Matratzenauflagevorrichtung) seitlich verschoben ist,

Fig. 8

die Situation, in der das Fußende des Betts ausgehend von der Situation gemäß Fig. 7 in Längsrichtung des Betts abgerückt ist,

Fig. 9

eine detailliertere Darstellung der Verbindung der beiden Bettrahmenteile und der beiden Matratzenauflageteile bei sich in der Normalposition befindendem Bett,

Fig. 10

eine detaillierte Ansicht der Verbindung zwischen den beiden Bettrahmenteilen und den beiden Matratzenauflageteilen bei sich in der Verschiebungsposition gemäß Fig. 2 befindendem Bett,

Fig. 11

eine Darstellung ähnlich der gemäß Fig. 10 jedoch bei noch verriegelten Bettrahmenteilen,

Fig. 12

eine Darstellung der Situation, in der das Unterschenkel- und das Oberschenkelteil der Matratzenauflagevorrichtung relativ zum Sitzteil hochgestellt sind,

Fig. 13

die Situation, in der das Unterschenkelteil der Matratzenauflagevorrichtung motorisch angehoben und das Oberschenkelteil abfallend schrägverlaufend ist,

Fig. 14

eine perspektivische Seitenansicht des Betts mit seitlich verschobenem Fußende und mit der Matratzenauflagevorrichtung in einer Position wie bei einem Stuhl bzw. Sessel,

Fig. 15

eine andere perspektivische Darstellung des Betts in der Position gemäß Fig. 14,

Fig. 16

eine Seitenansicht des Betts in der Position gemäß den Fign. 14 und 15 zur Verdeutlichung der in dieser Position möglichen Anhebung des Unterschenkelteils zur Erleichterung des Einnehmens einer Sitzposition,

Fig. 17

die Situation des Betts mit Matratzenauflagevorrichtung in der Position gemäß den Fign. 14 bis 16, wobei zusätzlich als weitere Aufstehhilfe der vom Untergestell gestützte Bettrahmenteil schräggestellt ist,

Fign. 18 bis 30

verschiedene Ansichten eines Betts gemäß einem zweiten Ausführungsbeispiel und

Fign. 31 bis 33

Draufsichten auf eine weitere alternative Ausgestaltung des Betts mit trennbaren Gelenken bzw. allgemein Verbindungselementen zwischen dem fußendeseitigen Teil und dem kopfendeseitigen Teil der Matratzenauflagevorrichtung.

The invention will be explained in more detail with reference to several embodiments. In detail, they show:

Fig. 1

in side view and schematically a hospital or nursing bed with longitudinal vertical planes separate bed frame and separated Mattress topper, the bed frame being shown in its normal displaced position relative to the base,

Fig. 2

the bed according to Fig. 1 also in side view, but now the bed frame is shifted relative to the base frame so far that the subdivision level of at least the mattress support device is outside the area occupied by the base,

Fig. 3

the bed according to situation Fig. 1 in the Trendelenburg position,

Fig. 4

the bed according to situation Fig. 1 in the anti Trendelenburg position,

FIGS. 5 and 6

Top views of the bed in positions according to the FIGS. 1 and 2 .

Fig. 7

a plan view of the bed in its shift position according to Fig. 2 in which the foot end of the bed (foot part-side part of the bed frame and the mattress support device) is shifted laterally,

Fig. 8

the situation in which the foot of the bed according to the situation Fig. 7 has moved away in the longitudinal direction of the bed,

Fig. 9

a more detailed representation of the connection of the two bed frame parts and the two mattress support parts in bed in the normal position,

Fig. 10

a detailed view of the connection between the two bed frame parts and the two mattress support parts in it in the shift position according to Fig. 2 bed,

Fig. 11

a representation similar to that according to Fig. 10 but with still locked bed frame parts,

Fig. 12

a representation of the situation in which the lower leg and the thigh part of the mattress support device are raised relative to the seat part,

Fig. 13

the situation in which the lower leg part of the mattress support device is raised by a motor and the thigh part is sloping obliquely,

Fig. 14

a side perspective view of the bed with laterally shifted foot and with the mattress support device in a position as in a chair or armchair,

Fig. 15

another perspective view of the bed in the position according to Fig. 14 .

Fig. 16

a side view of the bed in the position according to the FIGS. 14 and 15 to illustrate the possible increase in the lower leg portion in this position to facilitate the adoption of a sitting position,

Fig. 17

the situation of the bed with mattress overlay device in the position according to FIGS. 14 to 16 , wherein additionally as a further stand-up aid of the bed frame supported bed frame part is tilted,

FIGS. 18 to 30

various views of a bed according to a second embodiment and

FIGS. 31 to 33

Top views of a further alternative embodiment of the bed with separable joints or generally connecting elements between the Fußendeseitigen part and the head end-side part of the mattress support device.

In the FIGS. 1 to 17 schematically a hospital or nursing bed 10 is shown as an embodiment of the invention, which can optionally be used as a chair or chair, wherein the pivotable back part of the mattress support device forms the backrest of the chair.

The bed 10 has a base 12 which is height adjustable. The base 12 is provided with four legs 14,16 (normally with lockable rollers) which are telescopically or otherwise adjustable in height and at their upper ends by connecting elements 18 (see also the FIGS. 5 and 6 ) are interconnected. The headboard-side legs 16 form the headboard-side end 17 of the undercarriage 12, while the Fußteilseitigen legs 14 define the Fußteilseitige end 15 of the undercarriage 12.

On the height-adjustable base 12, a bed frame 20 is mounted horizontally displaceable. The bed frame 20 comprises at the head end 21 of the bed 10, a head part 22 and at the foot end 23 of the bed 10, a foot part 24. The head part 22 and the foot part 24 are connected by two side parts 26 with each other. The two side parts 26 are slidably mounted on the upper end of the undercarriage 12. For an automatic displacement of the bed frame 20 relative to the base 12, a motor 28 is used. Alternatively, this shift can also be done without a motor, ie manually.

In the bed frame 20 a (four-part) mattress support device 30 is arranged, which has a pivotable back part 32, a fixed seat part 34, a pivotable thigh part 36 and a movably arranged Lower leg part 38, wherein alternatively the thigh part and the seat part can also be combined to form a common adjustable seat part, as is the case with three-piece mattress support devices. The lower leg portion 38 is pivotally connected to the thigh portion 36 and is at pivoting of the thigh portion 36 (see the arrows 40,41 eg also in Fig. 13 ), wherein it is raised at its to the thigh part 36 facing (connecting) end and thus tilted. The pivotability of the back part 32 is in Fig. 1 indicated by the arrow 42 (see also FIGS. 14 to 17 ).

A special feature of the bed according to the FIGS. 1 to 17 is in the division of the bed frame 20 and the mattress support device 30 in the area of eg in the FIGS. 9 and 11 On each side of the sub level 44 of the bed frame 20 is now located on each side 26 of the bed frame 20 is a Kopfteilseitiger portion 26 a and a Fußteilseitiger portion 26 b. The two bed frame parts thus produced, namely the headboard-side bed frame part 20a and the foot part side bed frame part 20b are displaceable relative to one another transversely to the longitudinal extent of the bed 10, in the subdivision level 44, as in the FIGS. 7 and 8 is shown or indicated. Also, the mattress overlay device 30 is divided by the partition plane 45 into a head part side part 30a and a bottom part side part 30b. This means that the articulated connection of lower leg part 38 and thigh part 36 in the subdivision plane 45 is made laterally displaceable. In this embodiment, the headboard-side part 30a of the mattress overlay device 30 includes the back part 32, the seat part 34, and the thigh part 36, while the foot-part-side part 30b of the mattress overlay device 30 has the lower leg part 38. The division can also be made differently. It should be noted that the two subdivision levels 44 and 45, unlike possibly derived from the figures, can also fall apart.

The aforementioned lateral displaceability of the footboard side bed frame part 20b makes it possible to divide the bed 10 and separate its foot end and thus to be able to use the bed 10 like a chair to get out of the bed 10 or onto the bed 10 sit. In normal use, the bed 10, as in Fig. 1 If one were to move in this state of the bed frame 20, the Fußteilseitigen part 20b of the bed frame 20, so would areas of the base frame 12, namely the Fußteilseitigen legs 14, obstructive. Therefore, the bed frame 20 can be compared with the base frame 12 (with reference to the illustration in FIG Fig. 1 ) (horizontally in the bed longitudinal direction) until the dividing plane 44 is outside the area occupied by the undercarriage 12 (see Fig. 2 ).

The position and setting of the bed 10 to use the same as a chair or chair as a stand-up is in the FIGS. 14 to 17 shown. It can be seen that the mattress 46 lying on the mattress support device 30 is designed in two parts and comprises a head part-side section 48 and a foot part-side section 50. The Fußteilseitige section 50 rests on the lower leg portion 38 of the mattress support device 30, while the headboard side portion 48 of the mattress 46 on the back part 32, the rschiebungsposition of bed frame (20) and base (12) maichtung 30 rests and by Einfasselemente 47 against slipping to Foot end 23 of the bed 10 is secured back. The lower leg part 38 is provided with two safety side parts 52, which in the FIGS. 1 and 2 are shown in the erected position in which they protrude laterally of the mattress 46 over the top thereof. Furthermore, in Fig. 15 two armrest parts 54 and 55 are shown, which in this embodiment is fixed to the bed frame 20, namely at its side part portion 26a (for example, by plugging or the like removable attachment). The armrest part 54 may (unlike in Fig. 15 shown) extend substantially straight upwards, while the armrest part 55 from the Bettrahmenseitenteil from initially extends over the mattress 46 (or slightly angled up) to about the middle of the seat and from there further upwards. The back part 32 of the mattress support device 30 has two safety side parts 56. As based on Fig. 16 can be seen, now when getting up from the bed 10, the armrests 54 and 55 as the armrests of a chair can be used to support when putting on and off.

In the Fign, 1 to 17 It can also be seen that the displaceable foot end 23 of the bed 10 is supported by at least three and in this embodiment four legs 58 with rollers 60. This is not mandatory according to the invention, but facilitates the displaceability of the foot end 23 relative to the rest of the head end 21 of the bed comprehensive bed frame 20. The legs 58 may be designed to be folded or removable.

The FIGS. 9 to 13 illustrate in detail how the connection of both sides of the subdivision levels 44 and 45 are located parts of the bed 10 is realized. Thus, the thigh portion 36 of the mattress overlay apparatus 30 includes a frame 62 or the like provided with two spaced-apart first C-shaped guide profile elements 64 (see Figs FIGS. 7, 8 and 15 ) which are open to the lower leg part 38 of the mattress support device 30. The first guide profile elements 64 each have a C-profile, ie they are provided with an opening 66 in a region of the side wall of the first guide profile element 64. In each first guide profile element 64 there is a displaceably guided first cylindrical profile part 68 which defines a hinge axis 68 'and is connected to the lower leg part 38 via a first connecting element 70. These first connection elements 70 extend through the openings 66 in the first guide profile elements 64. Thus, it is possible that upon pivoting of the thigh part 36 (see the arrow 40 in FIG Fig. 13 ) the lower leg part 38 is taken and thereby also pivoted. On the other hand that is Lower leg portion 38 when manually raised over the C-profile rigidly coupled to the thigh portion 36, which is thus raised with ( Fig. 12 ).

Also, the bed frame 20 is provided by the interaction of a guide profile element with a body guided therein, so that the foot end 23 of the bed 10 is laterally displaceable relative to the remaining part of the bed 10. For this purpose, the headboard-side bed frame part 20a at its end facing the bed frame part 20b two equally spaced second guide profile elements 72 each having a C-profile, in each of which a second cylindrical profile element 74, which articulation axes 74 'define, is guided displaceably (see, eg FIGS. 11 and 12 ). Each second guide profile element 72 has an opening 76 in its side wall through which extends a connecting element 78 which is connected to the bed frame part 20b.

Nevertheless, it is possible in the articulated connection between the thigh portion 36 and the lower leg portion 38 of the mattress support device 30 to move both parts laterally against each other until both parts 36,38 are separated, as for example in the FIGS. 7 and 8 is indicated. After the bed frame 20 has first been moved relative to the base frame 12 (see FIGS. 1 and 2 ), then the foot end 23 of the bed, so of bed frame 20 and mattress support device 30, are laterally displaced (see arrow 96) until the respective first and second C-shaped guide profile elements 64,72 out of engagement with the first and second cylindrical profile elements 68th , 74 are (see Fig. 7 ). Starting from Fig. 7 then the foot end 23 of the bed 10 can be moved away in the longitudinal extension direction (see Peil 97), as it is in Fig. 8 is shown. In this case, the extended foot end 23 of the bed 10 then rests on the at least three or four legs 58.

The aforesaid double "open joints" (with their axes of articulation 74 'and 68') of the bed frame 20 and the mattress overlay device 30, in general terms, constitute connecting elements 65 (on FIG Bed frame) and 74 (on the mattress support device). It should be noted that the two bed frame parts 20a, 20b can be coupled by only one (or no) connecting element 65 and the mattress support parts 30a, 30b can also be connected by only one connecting element 73 , The number of connecting elements 65 and 73 can also each be greater than two and both numbers of connecting elements 65 and 73 can also be different,

In the FIGS. 1 to 17 It can also be seen that the lower leg part 38 can be supported at its end facing the foot part 24 of the bed 10 via a sliding or roller element 80 on the sections 26b of the side parts 26 of the bed frame part 20b. In this case, this support takes place on the inner sides of the portions 26b of the bed frame 20. As a result, the lower leg portion 38 is guided on the bed frame 20, in particular when the foot end 23 is displaced laterally. Then namely the lower leg part 38 is automatically taken. The lower leg part 38 and the bed frame part 20b of the foot end 23 of the bed 10 can thus always move together together, even if the force required for the displacement is exerted only on one of these two parts. A scissors-type high-rise construction 82 (scissors support in the FIGS. 5 to 7 indicated) is arranged transversely to the longitudinal extent of the bed 10 between the bed frame part 20b and mattress support device part 30b. This horseman construction 82 ensures a shear-resistant connection of the lower leg part 38 with the foot part side bed frame part 20b.

The lateral displaceability of the foot end 23 of the bed 10 has been described above using a hinged connection of the parts 20a and 20b of the bed frame 20 and the lower leg and thigh parts 38,36 of the mattress cover 30, the profile elements and bearing elements on the bed frame part 20a or the thigh part 36 are arranged. It goes without saying that this type of articulated and / or sliding bearing can also be realized "turned over" can, that is, the guide profile elements 64,72 on the lower leg portion 38 of the mattress support device 30 and the Fußteilseitigen bed frame part 20b of the bed frame 20 are arranged.

When booting the bed frame 20 by the height-adjustable frame 12 should be prevented that the foot end 23, when it is no longer supported on the roller 60, can unintentionally fold down. This can be realized by provided bolts 84 as stiffening elements 86 of the bed frame 20. In each side part 26 of the bed frame 20, such a bolt 84 may be arranged, which is received by both side portions 26 a and 26 b, when the bed is not in its displaced position according to Fig. 2 , eg in the shift position according to Fig. 1 (see also the detail drawings according to FIGS. 9 and 10 ). These stiffening elements 86 reinforce the connection between the two sections 26a and 26b of each side part 26 of the bed frame. They are connected to the base 12 and lie in guide channels 88 of the headboard-side sections 26a of the side parts 26. In the normal displacement position of the bed (see FIGS. 1 and 9 ), they are immersed in receiving channels 90 of the foot portion side portions 26b of the bed frame side members 26, while being moved out of the receiving channels 90 in the position of the bed for laterally displacing the foot end 23.

In addition, on the side parts 26 of the bed frame 20 there are still e.g. manually operated locking elements 92,93, which secure in the position of the bed for lateral displacement of the foot end 23 of this against unintentional lateral displacements and also act in the lateral shifting back of the foot end 23 as limit stops.

The following is again with reference to the FIGS. 1 to 13 will be discussed in more detail on the operation and operability of the bed 10. Basically, the Relativverschiebbarkeit of base frame 12 and bed frame 20 is only possible when the height-adjustable base frame 12 is in its minimum height position, as in Fig. 1 is shown. The reaching of this position is detected by one or more detectors (for example, limit switches, not shown). In this situation, the foot end 23 of the bed 10 is supported by the legs 58. The bed, as in the FIGS. 3 and 4 shown, optionally in the shock position (Trendelenburg position) according to Fig. 3 or in the anti Trendelenburg position ( Fig. 4 ) are transferred.

Now, if the bed 10 to be prepared in the position for exit from the bed at the foot end, so first the mattress support device 30 can be transferred to the appropriate position by the back part 32 is raised and possibly the thigh part 36 slightly inclined, as shown in the FIGS. 14 to 17 is shown.

For lateral displacement of the foot end 23 of the bed frame 20 must first be moved relative to the base 12 in the longitudinal extension of the bed 10, starting from the normal position according to Fig. 1 the position according to Fig. 2 is reached. This position is detected by a detector 94. In this position (second longitudinal displacement position), the stiffening elements 86 release the Fußteilseitigen portions 26 b of the side parts 26 of the bed frame 20, as well as by a comparison of FIGS. 9 and 10 can be seen. The FIGS. 5 and 6 show the top views of the bed 10 in the normal position (first longitudinal displacement position according to FIG Fig. 5 ) and in the second longitudinal displacement position according to Fig. 6 , A lateral displaceability of the foot end 23 is now only prevented by the locking elements 92. In Fig. 6 is indicated or recognizable that for moving the foot end 23 in the direction of the arrow 96, the locking member 93 (or for the opposite lateral displacement of the foot end 23, the locking member 92) must be unlocked. Now, the displacement of the foot end 23 of the bed in the direction of the arrow 96 done as it is in Fig. 7 is shown; Subsequently, the complete removal of the foot end 23 takes place from the remaining part of the bed 10 according to Fig. 8 ,

It should be mentioned at this point that the locking elements 92 and 93, the side portions 26 b of the bed frame 20 only from the outside. Thus, when one of the two locking elements 92,93 is unlocked, the foot end 23 of the bed 10 can be displaced laterally beyond the respective locking element, the other locking element still being in its locking position but not operative with respect to locking (see FIG Locking element 92 in the FIGS. 7 and 8 ). When lateral shifting back of the foot end 23 of the bed 10 then this locking element 92 serves as a stop and thus limits the displacement of the foot end 23. The position of the foot end 23 outside its center position according to the FIGS. 5 and 6 is detected by a detector 98. Once this detector 98 does not indicate the receipt of the central position of the foot end 23 of the bed 10, the adjustment of the undercarriage 12 is possible only up to a level slightly above the minimum height (a few centimeters), namely the bed converted into a chair to be able to lift to a comfortable seat height. The further height adjustment of the undercarriage 12 is prevented, since otherwise the foot 23 would no longer be supported by its legs 58 and thus tilt the raised bed at vertical loads on the foot 23 and in the worst case, the foot 23 of the bed could break off. In that regard, therefore, upon detection of the second longitudinal displacement position according to Fig. 2 limited by the detector 94, the height adjustment of the undercarriage 12 to the just described slight adjustment.

Further, in the chair position of the bed 10 according to FIGS FIGS. 14 to 17 still an inclination of the headboard side bed frame part 20a possible (see Fig. 17 ), which serves to further facilitate getting up.

In the embodiment described above, the bed 10 has articulated connections both between the two parts 30a, 30b of the mattress overlay device 30, and between the two parts 20a, 20b of the bed frame 20. However, the latter articulated connection is not mandatory. A correspondingly modified embodiment of a bed 10 without a connection of the two parts 20a and 20b of the bed frame 20 show the FIGS. 18 to 30 (see in particular the FIGS. 20 to 26 ), which are essentially the representations in the FIGS. 1 to 17 correspond. In that regard, in the FIGS. 18 to 30 the same reference numerals are used and as in the FIGS. 1 to 17 ,

In the FIGS. 31 to 33 schematically shows in plan view an embodiment of a further bed 10 "The bed 10", with the exception of the separable articulated connection of the foot-side and head-end portions 30b and 30a of the mattress overlay 30, has the same features and construction as the bed 10 and 10 ', respectively. according to the FIGS. 1 to 17 or 18 to 30 on. In that regard, in the FIGS. 31 to 33 again the same reference numerals as in the FIGS. 1 to 30 used. As in the embodiment according to FIGS. 18 to 30 the parts 20a and 20b of the bed need 10 "of FIGS. 31 to 33 not to be coupled by joints or other releasable fasteners; but this is not excluded.

According to Fig. 31 For example, the connecting elements between the two parts 30a and 30b of the mattress overlay device 30 are formed as two-part hinges 65 each having a first hinge part 67 "attached to the foot-end-side part 30b of the mattress overlay device 30 and a second hinge part 69 ", which is attached to the head end-side part 30a of the mattress support device 30. The first hinge or hinge parts 67 "are formed with a protruding pin 71" as a hinge axis 73 ", to which the second hinge or hinge parts 69" are attached. By a lateral relative displacement of the two parts 30a and 30b in the direction of the arrow 96 of the Fig. 31 the two hinges will be 65 " separated. Subsequently, the Fußendeseitige part 30 b (and with this the Fußendeseitige part 20 b of the bed frame 20) in the direction of the arrow 97 are then withdrawn. Depending on the orientation of the pins 71 "(left or right-hand side) of the first hinge or hinge parts 67", the foot end 23 can first be displaced laterally to the right or to the left for release, and then moved away in the longitudinal direction of the bed 10 " the hinge parts 67 ", 69" on the mattress support parts 30a, 30b may also be reversed and different for each hinge.

Claims (15)

1. A bed, particularly a hospital bed or nursing bed, comprising

   - a bed frame (20) comprising two side portions (26) on the lateral sides, a head end (21), and a foot end (23),

   - a mattress support structure (30) comprising an adjustable back section (32), a seat-surface section (34,36) and an adjustable lower-leg section (38), and

   - a base (12) arranged below the bed frame (20), said base (12) comprising a foot-end-side end (15) facing toward the foot end (23), and a head-end-side end (17) facing toward the head end (21),

   - the mattress support structure (30) is subdivided, along a subdivision plane (44) extending substantially parallel to the head and foot portions (24,22) of the bed frame (20), into a foot-end-side section (30b) and a head-end-side section (30a),

   - the bed frame (20) being adapted to be subdivided or being subdivided, along a subdivision plane (45) extending substantially parallel to the subdivision plane (44) of the mattress support structure (30), into a foot-end-side bed frame section (20b) and a head-end-side bed frame section (20a),

   - the foot-end-side section (30b) at least of the mattress support structure (30) being selectively lockable to, or movable relative to, its head-end-side section (30a),

   - the bed frame (20) and the base (12) being longitudinally displaceable relative to each other, particularly in a motorized manner, in a longitudinal direction extending parallel to the side portions (26) of the bed frame (20), said displacement being performed between a first and a second relative displacement position,

   - in said first relative displacement position, the subdivision plane (44) of the mattress support structure (30) being located in the region between the foot-end-side and head-end-side ends (15,17) of the base (12), and

   - in said second relative displacement position, the subdivision plane (44) of the mattress support structure (30) being substantially in alignment with the foot-end-side end (15) of the base (12) or is located between the foot-end-side end (15) of the base (12) and the foot portion (23) of the bed frame (20),

   - the foot-end-side sections (20b,30b) of the mattress support structure (30) and of the bed frame (20) are laterally displaceable beyond the lateral sides of the bed frame (20), with the foot-end-side section (30b) of the mattress support structure (30) being guided for lateral displacement on its head-end-side section (30a),

   characterized in

   - that the foot-end-side section (30b) of the mattress support structure (30) is connected to the head-end-side section (30a) of the mattress support structure (30) by at least two dividable connection elements (65;65"),

   - that each connection element (65;65") comprises a first connection element section (62,64;67") mounted to the foot-end-side section (30b) of the mattress support structure (30), and a second connection element section (68,70;69") mounted to the head-side section (30a) of the mattress support structure (30), and

   - that both connection element sections (62,64;67";68,70;69") of each connection element (65;65") can be divided or coupled by displacement along a connection-element axis (68',74',73") extending transversely to the longitudinal extension of the bed, said axis being arranged on a connection element section (67") and having the other connection element section (69") held or guided thereon.
2. The bed according to claim 1, characterized in that said at least two connection elements (65;65") are each designed as hinges and respectively joints having joint axes (68',74';73") extending substantially parallel to the subdivision planes (44,45) and transverse to the longitudinal displacement direction of the bed frame (20) and of the base (12), said hinges and respectively joints being adapted to be divided or coupled by displacement along their joint axes (68',74'; 73").
3. The bed according to claim 2, characterized in that each of said joints comprises a substantially C-shaped profiled member (64,72) arranged on one of the two sections (20a,30b) of the mattress support structure (30), and a substantially cylindrical profiled member (68,74) received by the substantially C-shaped profiled member (64,72) and arranged on the other one of the two sections (30a,30b) of the mattress support structure (30) and being displaceably guided in the substantially C-shaped profiled member (64,72).
4. The bed according to any one of claims 1 to 3, characterized in that the axis of the joint extends between the two sections (30a,30b) of the mattress support structure (30) above the side portions (26) of the bed frame (20).
5. The bed according to any one of claims 2 to 4, characterized in that also the two sections (20a,20b) of the bed frame (20) are connected by at least two joints, each of said joints comprising a substantially C-shaped profiled member (72) arranged on one of the two sections (20a,20b) of the bed frame (20), and a substantially cylindrical profiled member (74) received by the substantially C-shaped profiled member (72), said substantially cylindrical profiled member being arranged on the other one of the two sections (20a,20b) of the bed frame (20) and having the substantially C-shaped profiled member (72) displaceably guided therein.
6. The bed according to any one of claims 1 to 5, characterized in that the foot-end-side section (20b) of the bed frame (20) is adapted to be supported on a ground surface on which the base (12) can be positioned.
7. The bed according to claim 6, characterized in that the foot-end-side section (20b) of the bed frame (20) is adapted to be supported on a ground surface on which the base (12) can be positioned, by at least three ground supports (58), particularly four ground supports (58).
8. The bed according to any one of claims 1 to 7, characterized in that each connection element (65;65") has a design extension in the direction of lateral displacement of the respective sections (30a,30b, 20a,20b) of the mattress support structure (30) and optionally of the bed frame (20) which are connected by the connection element (65; 65"), and that the distance between two adjacent connection elements is larger than said design extension.
9. The bed according to any one of claims 1 to 8, characterized in that the base (12) is height-adjustable between a minimum height and a maximum height and that the longitudinal displaceability of the bed frame (20) and the base (12) is allowed when the base (12) is located substantially at the minimum height, and/or the height adjustability of the base (12) is allowed in case of the first relative displacement position of the bed frame (20) and the base (12), and/or the height adjustability of the base (12) is allowed up to a height slightly above the minimum height in case of the second relative displacement position of the bed frame (20) and the base (12).
10. The bed according to any one of claims 1 to 9, characterized in that, on each side portion (26) of the bed frame (20), between a foot-end-side and a head-end-side section (26b,26a) of the side portion (26), a stiffening element (86) is arranged which extends on both sides of the subdivision plane (45) of the bed frame (20) and is immersible or is immersed into the two sections (26a,26b) of each side portion (26) when the bed frame (20) and the base (12) assume a relative displacement position other than the second relative displacement position.
11. The bed according to claim 10, characterized in that, in the second relative displacement position of the bed frame (20) and the base (12), the stiffening elements (86) can be manually actuated and thus are movable and lockable in a displacement position other than the second relative displacement position, or that each stiffening element (86) is arranged self-supporting relative to the base (12) and is automatically released from engagement with the two foot-end-side sections (26b) of the side portions (26) of the bed frame (20) when the bed frame (20) and the base (12) assume their second relative displacement position.
12. The bed according to claim 10 or 11, characterized in that the stiffening elements (86) are respectively formed as bars (84), that, on both sections (26a,26b) of each side portion (26) of the head-end-side bed frame section (20a), a respective guiding channel (88) is arranged for guiding the respective bar (84) on the foot-end-side section (26b) of the side portion (26) and a receiving channel (90) is arranged for receiving said bar (84), and that, during the relative displacement of the bed frame (20) and the base (12), the bars (84) are located in the guiding and receiving channels (88,90), and, in the second relative displacement position, the bars are located outside the receiving channels (90).
13. The bed according to any one of claims 1 to 12, characterized in that at least one locking element (92,93) is provided for selective mechanical locking of the foot- and head-end-side bed frame sections (20b,20a) so as to prevent undesired relative movement of the foot-end-side and head-end-side sections (20a,20b,30a,30b) of the bed frame (20) and the mattress support structure (30) when the bed frame (20) and the base (12) are arranged in the second relative displacement position.
14. The bed according to any one of claims 1 to 13, characterized in that the base (12) is adapted to have its length adjusted relative to the bed frame (20) in the longitudinal direction of the base parallel to the side portions (26) of the bed frame (20).
15. The bed according to claim 14, characterized in that the base (12) on its head-end-side end (17) is connected to the bed frame (20) while being secured against displacement relative to the bed frame (20), and on its foot-end-side end (15) is connected to the bed frame (20) for longitudinal displacement thereon.

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