EP2020977B1 - Bed with a pivoting device - Google Patents

Description

The invention relates to a bed, in particular hospital and / or nursing bed.

Beds as such are well known in the art, so there is no need for a separate documentary evidence at this point.

For proper recording of a mattress, a cushioning element or the like beds known from the prior art have a support structure, which provides a support surface for the mattress, the upholstery element or the like. Such a support structure may for example be formed by a mesh grid, a slatted frame or the like. In particular slatted frames have proven to be a support structure for receiving a mattress, a cushion element or the like in everyday practice. They usually consist of a frame that carries the slats of the slatted base, which may be formed, for example, as a resilient slats made of plastic, wood or the like.

In order to open the user of a bed the ability to adjust a desired sitting and / or lying position individually, bed frames are known from the prior art, which consist of individual relative to each other pivotally arranged sections. In general, these sections of a pivotally formed slatted frame of a Support frame worn (see eg WO 2004/107923 A1 ).

A known from the prior art, adjustable trained slatted frame typically has a recorded from a support frame center or seat part. At this middle part, a head end is pivotally arranged at one end, which can be pivoted relative to the central part. At the other end, the middle part carries pivotably thereto a foot part, so that the slatted frame consists of a total of three sections. From the prior art, it is also known to subdivide the foot part in turn, two subsections which are arranged pivotable relative to each other. According to this embodiment, the slatted frame then consists of a total of four sections.

From the prior art it is known, the pivotally arranged relative to each other sections of a slatted frame to pivot by electric motor relative to each other. For this purpose, known from the prior art beds on below the support structure, that is, the slatted frame arranged electric motors, which are preferably actuated by means of cable-based remote control. The individual sections of the support structure, that is, the slatted base are coupled via corresponding and below the sections arranged linkage with the electric motors, so that during operation of the electric motors, the sections can be pivoted by means of the dedicated linkage in their relative position to each other as desired.

The construction described above has proven itself in everyday practice, but it is not free of disadvantages. Thus, the arranged below the sections electric motors and linkage disadvantageously require a certain installation space, so that the entire bed construction in height altogether expansively large fails, which in particular the desire for low beds, which allow a simplified entry into bed. Furthermore, the joint linkage is a certain risk of injury and thus safety, because objects and not least limbs can be trapped in a movement between the moving parts of a linkage. Moreover, the previously known constructions are visually comparatively unsightly, not least because, in particular in the pivoted state of some subsections, the respective articulated rods arranged underneath are visually freely accessible to a viewer.

Based on the above, the invention is therefore an object of the invention to provide a bed with a pivoting device, which requires a comparatively small installation space at the same time safe operation.

To solve this problem, a bed with a pivoting device according to the characterizing part of claim 1 is proposed with the invention. Advantageous embodiments and developments of the invention are included in the further claims.

Fig. 1

in schematisch perspektivischer Darstellung ausschnittsweise ein Bett;

Fig. 2

die Darstellung nach Fig. 1 in einer schematischen Seitenansicht;

Fig. 3

in einer schematisch perspektivischen Darstellung die Verschwenkeinrichtung nach der Erfindung;

Fign. 4 bis 20

in zum Teil schematischer Darstellung eine erste Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fign. 21 bis 36

in zum Teil schematischer Darstellung eine zweite Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fign. 37 bis 43

in zum Teil schematischer Darstellung eine dritte Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fig. 44

in schematischer Darstellung eine vierte Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fig. 45

in schematischer Darstellung eine fünfte Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fign. 46 bis 50

in zum Teil schematischer Darstellung eine sechste Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung;

Fign. 51 bis 60

in zum Teil schematischer Darstellung eine weitere Ausführungsform der erfindungsgemäßen Verschwenkeinrichtung und

Fign. 61 bis 68

in zum Teil schematischer Darstellung eine Ausführungsform der Erfindung mit einem Doppelmotor.

Further features and advantages of the invention will become apparent from the description with reference to the following Fign. Showing:

Fig. 1

in a schematic perspective view a detail of a bed;

Fig. 2

the representation after Fig. 1 in a schematic side view;

Fig. 3

in a schematic perspective view of the pivoting device according to the invention;

FIGS. 4 to 20

in a partially schematic representation of a first embodiment of the pivoting device according to the invention;

FIGS. 21 to 36

in partly schematic representation of a second Embodiment of the pivoting device according to the invention;

FIGS. 37 to 43

in a partially schematic representation of a third embodiment of the pivoting device according to the invention;

Fig. 44

a schematic representation of a fourth embodiment of the pivoting device according to the invention;

Fig. 45

a schematic representation of a fifth embodiment of the pivoting device according to the invention;

FIGS. 46 to 50

in a partially schematic representation of a sixth embodiment of the pivoting device according to the invention;

FIGS. 51 to 60

in partly schematic representation of a further embodiment of the pivoting device according to the invention and

FIGS. 61 to 68

in a partially schematic representation of an embodiment of the invention with a double motor.

Fig. 1 shows in a schematic perspective view of the support structure 2 of a bed 1. The support structure 2 is formed in the form of a slatted frame and provides a support surface 3, which serves to receive a mattress, a cushion element or the like.

In the Fig. 1 shown support structure 2 may be adjustable in height carried by a support frame, not shown, which in turn is on support rollers. The support structure 2 is itself formed as a slatted frame and has relatively mutually pivotally arranged sections 4, which are supported by a support frame 9. In this case, each subsection 4 consists of a frame 5. Each frame 5 in turn consists of frame parts 6, which are connected to one another by means of connectors 7. Of the respective frame 5 of the sections 4, the slats 8 of the slatted frame are supported, the slats. 8 may be formed for example of wood, plastic or the like.

The support frame 9 of the support structure 2 also consists of frame parts 10, which are interconnected by means of corresponding connector 11. In this case, both the frame parts 6 of the frame 5 and the frame parts 10 of the support frame 9 may be formed of aluminum, for example in the form of Aluminiumstrangpreßteilen. The frame parts 6 and 10 interconnecting connectors 7 and 11 are also made of aluminum. Likewise, it is possible to form the connectors 7 and 11, respectively, from plastic.

The middle portion 4, that is, with respect to the leaf level Fig. 1 second section 4 from the left is fixedly connected to the holding frame 9. The front side of this section 4 is flanged on both sides of a closer to be described pivoting device 12 according to the invention. With respect to the leaf level Fig. 1 joins the left side of the central portion 4, a second section 4, which can also be referred to as the head section. The serving as a head portion section 4 and serving as the middle section portion 4 are formed by means of the interposed pivoting device 12 relative to each other pivotable.

At the designated as the middle section section 4 close with respect to the plane of the drawing Fig. 1 on the right side two further sections 4, each with the interposition of a pivoting device 12 according to the invention to the reference to the drawing plane to Fig. 1 each left side arranged portion 4 are arranged relative to this pivotally. Overall, this results in a four subsections 4 having support structure 2, wherein the individual sections 4 are formed relative to each other thanks to the respective arranged between two adjacent sections 4 pivoting 12.

Fig. 2 shows the support structure Fig. 1 in a schematic side view. Also from this representation, the individual sections 4 can be seen, which are formed relative to each other thanks to the respectively between two adjacent sections 4 respectively intermediate pivoting device 12.

The between each two sections 4 arranged pivoting 12th is schematic in Fig. 3 shown.

As Fig. 3 reveals, has a pivoting device 12 each have a drive device 13, which - as already on the basis of FIGS. 1 and 2 explained-frontally between two adjacent sections 4 is arranged. The drive means 13 comprises a motor 14 and a gear 15. The motor 14 and the gear 15 of the drive means 13 are housed in a housing 16, which is preferably formed in two parts and consists of plastic.

To the gear 15, a shaft 17 is flanged on the output side, according to the embodiment shown Fig. 3 is formed of two half-axes 18 and 19. In this case, the transmission 15 is arranged substantially centrally between the two half-axes 18 and 19.

The half axles 18 and 19 each have a fastening flange 21 on one end, which serves to couple one of the two adjacent sections 4 with the pivoting device 12. The mounting flanges 21 are preferably formed as webs which can be inserted into the hollow frame parts 6 of a frame 5 of a section 4 and fastened there.

The drive device 13 is how Fig. 3 further can be seen connected to a fixed support member 22. This support element 22 is formed from two sections 23, wherein the drive means 13 is arranged substantially centrally between the two sections 23.

The subsections 23 preferably each form a housing 20, in which the respectively associated semiaxes 18 and 19 are arranged rotatably mounted.

The subsections 23 each have an attachment flange 24 on one end, by means of which the swiveling device 12 can be arranged on a second subsection. As well as the mounting flanges 21, the approach flanges 24 are preferably formed as web-shaped holder, which is inserted to arrange a portion 4 of the pivoting device 12 in the hollow frame parts of the associated frame 5 of the section 4 and can be fixed there.

The pivoting device 12 serves to connect two sections 4 relatively pivotable with each other. The attachment flanges 21 serve to arrange the first section 4, whereas the attachment flanges 24 are provided for the arrangement of the second section 4. Upon actuation of the pivoting device, the mounting flanges 21 pivot relative to the shoulder flanges 24, whereby the portion 4 supported by the mounting flanges 21 is pivoted relative to the portion 4 carried by the shoulder flanges 24.

The pivoting device 12, as in Fig. 3 is shown, is arranged frontally between two adjacent faces 4, as from the FIGS. 1 and 2 seen. In this way, a particularly space-saving design of the entire bed construction is achieved. In addition, there is no need for additional linkage, as these are known from the prior art.

Thanks to the encapsulated embodiment of the pivoting device 12, this is designed splash-proof. An operation of the drive device 13 is preferably carried out by means of a remote control, which may be cable-based or radio-based. Preferably, one of the two sections 4, which are coupled together via a common pivoting device 12, arranged longitudinally displaceable to the pivoting device 12, so that with respect to the provided by the sections 4 bearing surface 3 a change in length is possible, so that a change in length occurring due to a pivoting movement the recorded from the support surface 3 mattress can be compensated.

With the above explained FIGS. 1, 2 and 3 the pivoting device according to the invention was basically explained by means of schematic representations. Furthermore, the pivoting device according to the invention will now be discussed with reference to embodiments, wherein the FIGS. 4 to 20 a first embodiment, the FIGS. 21 to 36 a second embodiment, the FIGS. 37 to 43 a third embodiment, the Fig. 44 a fourth embodiment, the Fig. 45 a fifth embodiment, the FIGS. 46 to 50 a sixth embodiment and the FIGS. 51 to 60 relate to a further embodiment. Identical reference numbers identify identical and / or similar parts and / or elements. Fig. 4 shows in a first embodiment, a drive device 13, which has a motor 14 and a transmission 15. Both the engine 14 and the transmission 15 are each housed in a housing.

A partially sectioned side view of the drive device 13 according to Fig. 4 along the section line VV to Fig. 4 , shows Fig. 5 , It is off Fig. 5 in particular, to recognize the structure of the transmission 15.

A perspective view of the drive device 13 according to Fig. 4 shows Fig. 6 , A side view of the drive device 13 after Fig. 4 , in the viewing direction with respect to the plane of the drawing Fig. 4 from the left is in Fig. 7 shown.

Fig. 8 shows the drive device 13 in a detailed view Fig. 5 , wherein in particular the structure of the transmission 15 can be seen.

In the transmission 15 according to the first embodiment according to Fig. 8 it is a four-stage gear transmission. The transmission 15 comprises a ring gear 25 on the one hand and gear wheels 26 in engagement therewith on the other hand. The gears 26 form the transmission stages in a conventional manner.

The ring gear 25 and the gears 26 are disposed within a transmission housing 27. On the power output side, a shaft 17 is provided which communicates with the gears 26 in a force-transmitting manner.

The gear geometry of the transmission 15 is designed so that all gear stages have the same internal toothing. The ring gear 25 receives all components and serves as a housing. The geometry of the first three gear stages is identical.

In the transmission 15 after Fig. 8 it is a so-called planetary gear. The sun gears with the planet carriers form an assembly. The sun gears are pressed for reasons of simplified production in the respective associated carrier discs. Due to the high moments to be transmitted, a cylindrical interference fit is not possible. Therefore, the sun gear profile is made by punching or lasering in the disk. The shaft is supported by means of an encapsulated rolling bearing 28 due to the following advantages: Low cost and small footprint; no axial forces and / or shear forces; extremely low output speed and the shaft 17 is additionally supported by the planetary gears.

Fig. 9 shows in a perspective view the transmission 15 after Fig. 8 , In particular, the individual toothed wheels 26 as well as the toothed wheels separating from each other face plates 29 can be seen here.

The ring gear 25 and an exemplary face plate 29 are shown in detail in the FIGS. 10, 11, 12 and 13 shown.

As Fig. 8 further reveals the gear 15 is closed by means of a motor 30 side cap 30. This cap 30 is in a detailed view in the FIGS. 14, 15 and 16 shown.

Fig. 17 shows the to the transmission 15 after Fig. 8 flanged engine 14. It can be seen off Fig. 17 In particular, the formation of the motor-side pinion 31st

The FIGS. 18, 19 and 20 each show in a different view a planetary carrier 32, wherein the FIGS. 18 to 20 the planet carrier 32 of the last stage of the transmission 15 after Fig. 8 represent.

Fig. 21 shows in exploded view a second embodiment of the invention, which differs from the embodiment according to the FIGS. 4 to 20 characterized in that a toothed belt is used as means for transmitting engine power. The timing belt itself is in Fig. 21 not shown. However, to recognize the associated gears 26th

Out Fig. 21 are good the approach flanges 24 and the mounting flanges 21 can be seen. The with respect to the plane of the drawing Fig. 21 Right, shoulder flange 24 is in a detail view in the FIGS. 22, 23 . 24 and 25 shown. The with respect to the plane of the drawing Fig. 21 left mounting flange 21 is in a detailed view in the FIGS. 26, 27 and 28 played.

For coupling the mounting flanges 21 to the respective associated half-axes 18 and 19 of the shaft 17 is used in the embodiment according to Fig. 21 a connection part 33, which in a detailed representation in the FIGS. 29, 30 . 31 and 32 is reproduced. As in particular the FIGS. 29 and 30 can be seen, the connecting part 33 consists of a pin-shaped extension 34 and a head 35. The head 35 carries circumferentially extending in the longitudinal direction ribs 36 which engage in the assembled state in a corresponding toothing of the respective associated mounting flanges 21, in particular Fig. 21 can be seen. A toothed belt gear 26, as in the embodiment according to Fig. 21 can be used as an example, is in the FIGS. 33, 34 . 35 and 36 shown.

A third embodiment of the pivoting device 12 according to the invention show the FIGS. 37 to 43 ,

As in particular the representation after Fig. 21 can be seen, a motor 14 and a gear 15 are arranged in a housing 16, wherein the force deflection takes place on the shaft 17 by means of a gear arrangement 37. This gear assembly 37 is in a detailed view in Fig. 43 shown again. As can be seen here, the gear assembly 37 consists of two gears 26, the front side engage with each other.

Another embodiment of the gear arrangement 37 shows Fig. 44 , which relates to a fourth embodiment of the invention. According to this embodiment, three bevel gears act together, each half axle 18 and 19 each end carries a bevel gear 38, which engage two bevel gears in a flanged on the gear 15 bevel gear 38.

Fig. 45 shows a further embodiment of a gear arrangement 37 according to a fifth embodiment of the invention. According to this embodiment, a four-bar linkage in the form of a parallelogram is used for power transmission.

A sixth embodiment of the invention is in the FIGS. 46 to 50 shown. The peculiarity of this embodiment results in particular from the compact design of the accommodated in the housing 16 drive means 13, in particular Fig. 50 recognize. The advantage of this embodiment is, in particular, that the drive device 13 with respect to the drawing plane after Fig. 50 down very little, which makes it possible in particular to use the pivoting device 12 according to the invention also for low-density beds. In addition, according to this embodiment a spring 39 is provided which serves to provide a base load. The provision of such a spring allows advantageously, the entire drive means 13, that is, both the motor 14 and the gear 15 interpreted comparatively small dimensioned.

The above statements are merely exemplary and not limiting in this respect. Thus, for example, be provided that the pivoting device according to the invention not only via a motor, but two motors, for example in the form of a double motor, has, which is especially in over-normal beds advantageous to provide the required adjustment can.

Another embodiment is in the FIGS. 51 to 60 shown.

As the representation after 51 can be seen, a support structure 2 is also provided according to this embodiment, which consists of individual sections 4. The support structure 2 is supported by a holding frame 9 in the manner already described.

The peculiarity of the embodiment according to the FIGS. 51 to 60 consists in the five relative to each other pivotally arranged sections 4, wherein three sections 4 are coupled to each other via a common pivoting device 12.

As in particular the representation after the FIGS. 51 and 54 can recognize the support structure 2 has a central portion 4, which is arranged in the final assembled state by means of two connecting rails 40 on the support frame 9, fixed, which means that the central portion 4 is not relative to the support frame 9 is pivotable.

With reference to the drawing plane 51 close to the middle section 4 both left and right side two further sections 4 at. In this case, the middle section 4 sibling sections 4 are movable relative to the middle section 4. The to the movable sections 4 with respect to the plane of the drawing 51 On the right side or left side sibling sections 4 are in turn arranged to be movable to the movable sections 4. Due to this movable arrangement of the Subsections 4 resulting adjustment of the support structure 2, that is, the individual sections 4 relative to each other results, for example, from the FIGS. 55 . 56 and 58 to 60 , where the representation after Fig. 60 only the support structure 2, that does not show the support structure receiving the Auflagerkonstruktion in the final assembled state.

In particular, from the pictures after the FIGS. 51 to 54 It can be seen that the central portion 4 and this central portion 4 with respect to the plane of the drawing 51 Left and right side sibling sections 4 are coupled together via a common pivoting device 12. This common pivoting device 12 provides a double drive, which has a motor on the one hand and two transmissions on the other hand. In this case, one transmission serves one part section 4 arranged at the middle section 4, whereas the other transmission serves the other section 4 arranged at the middle section 4. This construction allows the saving of a motor, since due to the common pivoting device for a total of three sections only a single motor is provided. This not only allows a comparatively inexpensive embodiment of the invention, it also simplifies handling and also reduces the assembly and maintenance costs.

From the FIGS. 58 to 60 is again good to see that the pivoting device according to the invention requires a comparatively small installation space, so that an overall compact, less space-consuming construction is provided, which can be used advantageously in connection with low beds. In addition, omitted below the support structure 2, that is, the individual sections 4 extending transmission linkages, cables or other Verbindurigs- and coupling devices.

The FIGS. 61 to 68 show an embodiment of the invention, according to which at least with respect to a pivoting device 12, a double motor is used. As a pivoting device 12, for which a double motor can be used, for example, the pivoting device 12 of a central portion 4, as exemplified in 51 shown.

How the particular Fig. 61 can recognize, the pivoting device 12 has two motors 14. Each motor 14 is connected to an associated gear 15th flanged, which in turn is force-transmitting with an associated shaft 17 in conjunction. For power transmission between the transmission 15 on the one hand and shaft 17 on the other hand serves as a Gelenkkhebel 45th

The FIGS. 65 and 66 or 67 and 68 show a shoulder flange 24 and a mounting flange 21, respectively.

As based on the FIGS. 65 and 66 can be seen, the approach flange 24 has a connecting portion 42 which is placed in the final assembled state on the portion 23 of a support member 22, in particular Fig. 61 recognize. The approach flange 24 further has an angle part 43. This engages in the final assembled state in a hollow frame part 6 of a section 4, as already explained above. In the same way, the mounting flange 21 has an angle portion 44, as from the FIGS. 67 and 68 seen. In addition, has a mounting flange - as well as the FIGS. 67 and 68 can be seen - via a shaft extension 41. In the mounted state of this shaft lug 41 engages force-transmitting in the associated semi-axis 18 and 19 of a shaft 17 a. <B><u> REFERENCE LIST </ u></b> 1 bed 32 planet carrier 2 support construction 33 connector 3 bearing surface 34 extension 4 part Of 35 head 5 frame 36 rib 6 frame part 37 gearing 7 Interconnects 38 bevel gear 8th bar 39 feather 9 holding frame 40 connecting rail 10 frame part 41 shaft extension 11 Interconnects 42 connecting portion 12 swiveling 43 angle part 13 driving means 44 angle part 14 engine 45 articulated lever 15 transmission 16 casing 17 wave 18 semiaxis 19 semiaxis 20 casing 21 mounting flange 22 supporting member 23 part Of 24 Ansatzflansch 25 ring gear 26 gear 27 casing 28 roller bearing 29 Faceplate 30 cap 31 pinion

Claims (7)

1. A bed (1), in particular a sick bed and/or care bed, comprising a bearing construction (2) providing a bearing surface (3) for a mattress, an upholstered element or the like, wherein the bearing construction (2) is formed by sections (4) which are pivoting with respect to each other, wherein one pivoting device (12) is respectively arranged between two adjacent sections (4),
   characterized in
   that the pivoting device (12) comprises an electronic drive device (13), which drive device (13), for its part, comprises a motor (14) and a gear (15), that the pivoting device (12) comprises a shaft (17) that is flange-mounted on the gear (15) of the drive device (13), which shaft (17) is formed by two half-axes (18, 19), wherein the half-axes (18, 19) are each located in a housing (20), and that the pivoting device (12) comprises a supporting element (22) composed of two sections (23), wherein the two sections (23) are each formed by the housing (20) receiving the respective half-axis (18, 19).
2. A bed (1) according to claim 1, characterized in that the half-axes (18, 19) respectively carry a fastening flange (21) at one end, wherein the fastening flanges (21) serve to mount a first section (4) on the pivoting device (12).
3. A bed (1) according to claim 2, characterized in that the sections (22) respectively carry a connecting flange (24) at one end, wherein the connecting flanges (24) serve to mount a second section (4) on the pivoting device (12).
4. A bed (1) according to claim 1, characterized in that each section (4) is formed by a frame (5), which frame (5) is composed of hollow frame parts (6).
5. A bed (1) according one of the preceding claims 1 through 4, characterized in that the fastening flanges (21) and the connecting flanges (24) are designed as web-shaped retainers which are inserted into the hollow frame parts (6) of the associated frame (5) of the section (4) and are fastened there for mounting a section (4) on the pivoting device (12).
6. A bed (1) according to claim 1, characterized in that one of the sections (4) connected to the pivoting device (12) is arranged on the pivoting device (12) such that it can be relatively displaced into a transverse direction with respect to the longitudinal extension of the half-axes (18, 19) of the pivoting device (12).
7. A bed (1) according to claim 1, characterized in that the drive device (13) comprises a housing (16) which receives the motor (14) and the gear (15).

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