EP3031361B1 - Lying surface with a locking element - Google Patents

Description

The invention relates to a lying surface with a locking element according to the preamble of claim 1.

The term "lying surface" means slatted frames, which consist of at least one central part and a head portion pivotally mounted thereto.

In addition, the invention also relates to lying surfaces that do not work with slats, but with punctiform supporting elastic elements that can be padded and covered, but also for this type of lying surfaces is characteristic that they consist of at least one central part and a swivel consist connected headboard.

In other embodiments, the invention provides that the lying surface consists of a total of three parts, namely a central part and a pivotally arranged thereon head part and a foot part, which is also pivotally mounted on the central part.

In addition, the invention also provides lying surfaces, in which the head part is divided into two mutually bendable and pivotally mounted to each other headboard areas. The two head portions are therefore formed by means of a suitable lifting drive against each other pivotable.

In such lying surfaces, in which at least at one central part a head part is pivotally mounted, there is the problem of Schwenkwinkelbegrenzung. The head part is to form a continuous aligned plane in a lowered position with respect to the central part, and it should be avoided in any case that the plane of the central part is pivoted down below this level.

The DE 100 18 567 C2 shows a slatted frame, wherein each of the foot and the head part are connected via a respective hinge part with the central part. The Joint part has two joint members, wherein the first joint member has a hinge connection to the head or. Foot allows and the second hinge member a hinge connection to the middle part. The hinge part also has a vertical to the respective hinge axes cover plate with oblique stop surfaces, which depending on the position of the individual parts of corresponding counter-stop surfaces on the central part or on the head or. Create foot part. The stop surfaces serve to limit the pivot angle of the spar parts relative to the joint part.

A disadvantage of this device is that the joint part has two joint axes and in addition to the abutment surfaces of the joint part further fixing elements, such. Bolts are needed to lock the individual parts in a certain swing angle.

In electric motor-driven rotary actuators for lying surfaces, there is the further problem that in multi-angled portions of the bed surface of the lifting drive can come into a position where a self-locking takes place. Such self-locking during operation of the linear actuators should be prevented in any case.

The invention is therefore based on the object, a lying surface of the type mentioned in such a way that by a locking element a pivot angle limit for the pivotally connected to the middle part lying surface areas can be provided.

To solve the problem, the invention is characterized by the technical teaching of claim 1.

In the lying surface according to the invention the locking element is used for pivoting angle limitation between the two bendable headboard areas.

It is advantageous to use such a locking element in such a lying surface and to provide the pivoting angle limit between the two mutually bendable head portions in the region of the pivot axis.

In fact, in the case of such separately bendable head part regions, there is the problem that the upper head part region unintentionally pivots downwards during the pivoting drive by means of a lifting rod and the lifting drive is then no longer able to erect this head part region again and bring it in one plane with the other head part region. the next to the middle part is arranged. The rotary actuator can work hydraulically, pneumatically or by electric motor. In particular, gas springs can be used as a rotary actuator.

For this purpose, the invention provides that in this area the pivoting angle limit is arranged with the locking element. An undesirable self-locking in such a lifting drive with mutually angled headboard areas usually consists of a lifting rod, which runs approximately parallel to the longitudinal axis of the two pivotally interconnected longitudinal beams, if they are in a continuous, extended position.

However, due to mechanical inaccuracies or play in the bearing elements, it may happen that the upper head portion below the level of the adjoining other head portion and for this purpose the locking element according to the invention is provided, which is plugged into the pivot region of the two connected head portions so that avoiding unwanted turning of the upper head portion down.

The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other, as defined in the claims. All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.

In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are the drawings and their description further essential features and advantages of the invention.

Figur 1:

schematisiert eine Liegefläche mit einem davon abgewinkelten Kopfteil und zwei unterschiedlich abgewinkelten Kopfteilbereichen

Figur 2:

die Darstellung nach Figur 1 mit gestrecktem Kopfteil

Figur 3:

schematisiert eine Ausführung in explosionsartiger Darstellung für die Montage des Arretierelementes zwischen zwei Längsholmen

Figur 4:

das Arretierelement nach Figur 3 in montiertem Zustand in einem ersten Schwenkwinkel

Figur 5:

das Arretierelement nach Figur 4 bei gestreckter Lage der beiden Längsholme

Figur 6:

eine vergrößerte Darstellung der Figur 3 mit Darstellung weiterer Einzelheiten

Show it:

FIG. 1:

schematized a lying surface with one of them angled headboard and two differently angled headboard areas

FIG. 2:

the representation after FIG. 1 with stretched headboard

FIG. 3:

schematized an execution in explosive representation for the mounting of the locking element between two longitudinal beams

FIG. 4:

the locking element after FIG. 3 in the assembled state in a first pivoting angle

FIG. 5:

the locking element after FIG. 4 in the extended position of the two longitudinal struts

FIG. 6:

an enlarged view of FIG. 3 with further details

In FIG. 1 and FIG. 2 a bed frame 1 is generally shown, on which a lying surface 3 is placed in the manner of a slatted frame. The bed frame 1 is supported with support feet 2 against a mounting plane.

The lying surface 3 is formed as a slatted frame, wherein the slatted frame consists of a plurality of parallel adjacent slats, which are received in associated support members 37, which in turn are resiliently mounted with respect to the longitudinal bars 21, 22.

The slatted frame 4 consists in a preferred embodiment of a central part 5, to which a head part 7 attaches via a first pivot axis 9, which consists of two mutually angled head portions 7a, 7b.

The bendable head portions 7a, 7b are pivotally connected to each other by a horizontal pivot axis 8.

On the opposite side of the middle part 5, a foot part 6 sets via a further horizontal pivot axis 10.

The invention is not limited to an angled head portion 7 with the two mutually pivotally shaped head portions 7a, 7b. It is also possible to use a single, continuous head part 7.

In the illustrated embodiment, the slatted base 4 is designed to be pivotable via a plurality of lifting drives.

About a lifting drive 13, the pivotal position of the foot part 6 can be adjusted and determined. Via the lifting drive 12, the pivotal position of the lower head portion 7b can be adjusted, and by the lifting drive 14, the pivotal position of the upper head portion 7a compared to the lower head portion 7b be designed adjustable.

For this purpose, the lifting rod 15 of the lifting drive 12 acts on a first pivot bearing, which is arranged on the underside of the head part 7b. The lifting rod 16 of the second lifting drive 14 acts via a rotation axis 17 on a holder 18 which is fixed to the underside of the head portion 7a.

According to the invention, in a preferred embodiment, a locking element 20 is arranged in the pivoting area between the two head part regions 7a, 7b in order to move according to FIG FIG. 2 to avoid that the upper head portion 7a falls down in the direction of arrow 19 and in this case the lifting rod 16 of the lifting drive 14 comes in a self-locking, so that the unintentional pivotal position of the head portion 7a in the direction of arrow 19 is no longer able to be lifted without external force. To this end, the invention provides that a locking element 20 is arranged in the pivoting area between the two pivotally interconnected head portions 7a, 7b, which limits the extended position of the longitudinal bars in the downward direction.

The invention is not limited thereto. In another embodiment, it can be provided that the locking element 20 is arranged in the region of the pivot axis 9 and / or in the region of the pivot axis 10.

The invention thus relates to the arrangement of a locking element 20 in the region of the respective pivot axes 8, 9, 10th

The locking element 20 is respectively attached to the left and right of the longitudinal beams in the region of the respective pivot axis 8-10. It is thus always available in pairs in the range of a pivot axis.

Instead of the paired arrangement, it may be provided in another arrangement to attach the locking member 20 only on one side. When a paired arrangement is described in the following description, this is not meant to be limiting.

The FIG. 3 shows as an example the use of the locking element 20 in the region of the pivot axis 8. As indicated above, however, the pivot axis 9 or the pivot axis 10 may be equipped with such a locking element 20, wherein each locking member 20 is present in pairs.

In the exemplary embodiment it is shown that the longitudinal member 21 assigned to the head part region 7b has a holding part 23 at one end, into which the locking element 20 can be inserted in a form-fitting manner.

The locking element 20 is then according to the FIG. 4 in front of the holding part 23 and thus forms stop surfaces for the pivoting angle limit of the pivotally adjoining longitudinal beam 22nd

The FIG. 6 shows further details of the plug-in fastening of the locking element 20th

The holding part 23, which is arranged at one end of the longitudinal spar 21, consists essentially of a multiply ribbed plastic part, wherein starting from a central through-hole 27, a number of ribs 25 are present, which go to the walls of the holding part 23 and form a material integral plastic part.

There is a rib 25 which defines between them two separate receiving spaces 24, 26 in the holding part 23.

The locking element 20 is formed as a plastic part and forms a triangular body 29, on whose insides two through a slot 23 separate plug body 34, 35 are formed. Each plug body 34, 35 is designed in its shape so that it can be positively inserted into the associated receiving space 24, 26 in the holding part 23.

Thus, the triangular body 29 abuts with a rear abutment surface 30 on an associated inner abutment surface 36 in the holding part 23 and forms a forwardly directed, angled stop surface 31 which can be brought to the associated stop surface 32 of the longitudinal beam 22 to the plant.

In the assembled state, the situation thus arises after the FIGS. 4 and 5 , where it can be seen that the two longitudinal beams 21, 22 in the extended state, when they result in a continuous lying surface in a plane, are stop-limited to one another.

The locking element prevents a folding of the longitudinal spar 22 in the direction of arrow 19 according to FIG. 5 under the plane of the longitudinal spar 21st

Of course, the angle of the abutment surface 31 to the abutment surface 30 in the triangular body 29 may also be designed differently to ensure that the longitudinal beam 22 occupies and maintains a certain angular position relative to the longitudinal beam 21 lying in a horizontal plane.

Zeichnunaslegende

1

bed frame

2

Support foot

3

lying area

4

slatted

5

midsection

6

footboard

7

Head part 7a, 7b

8th

swivel axis

9

swivel axis

10

swivel axis

11

lamella

12

Linear actuator (middle)

13

Lifting drive (foot section)

14

Lifting drive (head section)

15

lifting rod

16

lifting rod

17

axis of rotation

18

holder

19

arrow

20

locking

21

longeron

22

longeron

23

holding part

24

accommodation space

25

rib

26

accommodation space

27

Through Hole

28

Through Hole

29

triangle body

30

Stop surface (from 20)

31

Stop surface (from 20)

32

Stop surface (from 22)

33

slot

34

plug body

35

plug body

36

Stop surface (from 21)

37

support body

Claims (8)

1. Lying surface (3) for a bed frame (1) wherein one or more electric-motor or hydraulic or pneumatic or gas-strut lifting drives (12-14) are provided for swivel driving of head and/or foot part (6, 7), wherein the head part (7) consists of two head part regions (7a, 7b) which can be swivelled and folded at an angle in relation to one another and the relative folding of which is adjustable by the lifting drive (16), wherein at least one locking element (20) is arranged in the region of the swivel axis (8) for limiting the swivel angle between the two head part regions (7a, 7b), characterised in that the locking element (20) is embodied in the form of a triangular body (29) and the stop faces (30, 31) are arranged at an angle to one another and capable of bearing against the associated stop faces (32, 36) of the longitudinal members (21, 22) which can be folded at an angle in relation to one another.
2. Lying surface (3) according to claim 1, characterised in that a lifting bar (16) of the lifting drive (12-14) for swivel driving of the two head part regions (7a, 7b) which can be folded at an angle in relation to one another runs substantially parallel to the longitudinal axis of the two longitudinal members (21, 22) of the lying surface which are connected with one another so that they can swivel when the longitudinal members are in a continuous extended position, and in that this extended position is limited by the locking element (20).
3. Lying surface (3) according to claim 2, characterised in that at its free end the lifting bar (16) acts on a bracket (18) through a swivel axis (17), wherein the bracket (18) is connected with one head part region (7a), and in that at its other end the lifting bar (16) is accommodated in a lifting drive (14) which is fastened to the other head part region (7b).
4. Lying surface (3) according to one of claims 1 to 3, characterised in that the locking element (20) can be connected in a form-locking manner with a holding part (23) which is fastened to a longitudinal member (21).
5. Lying surface (3) according to one of claims 1 to 4, characterised in that arranged on the locking element (20) there are insertable members (34, 35) which can be inserted into associated receiving spaces (24, 26) of a holding part (23) on the longitudinal member (21) and are received in form-locking manner there and secured against falling out.
6. Lying surface (3) according to claim 5, characterised in that the insertable members (34, 35) are formed on the triangular body (29) of the locking element (20).
7. Lying surface (3) according to one of claims 5 or 6, characterised in that the insertable members (34, 35) are separated from one another by a slot (33) and in that the slot (33) engages over a rib (25) in the receiving space (24, 26) of the holding part (23) when the locking element (20) is inserted.
8. Lying surface (3) according to one of claims 1 to 7, characterised in that the locking element (20) forms a protection against toppling over between the head part regions (7a, 7b) which can be folded at an angle in relation to one another.

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