EP0852123A1 - Device for adjusting the backrest and legrest of a frame for a bed - Google Patents

Abstract

The central part (4) is firmly held in the inlay frame and with it a first pivot lever (9) is provided, which works in conjunction with the back rest part (2) and is pivotable around a first pivot axis (10). A second pivot lever (14) is provided, which works in conjunction with the thigh location part (3) and is pivotable around a second pivot axis (15), having at least one arm (20). The first axis (6), the second axis (7), the first pivot axis (10) and the second pivot axis (15) are arranged parallel to one another in the inlay frame (1). The pivot levers (9, 14) are pivotable by means of adjustment components.

Description

The present invention relates to a device for Adjustment of a back rest part and a thigh rest part Insert frame for a bed according to the preamble of claim 1.

Such devices are known. For example, the AT-B-401 604 a bed insert that has an adjustable headboard, a middle part and has a foot part which are connected to one another. These parts can be brought into a sitting position from an extended lying position. The adjustment is supported by a gas spring, which is an automatic Swiveling up the headboard causes. Depending on the position of the Head part is also adjusted the middle part and the foot part.

To adjust the corresponding parts from an extended lying position in this embodiment, a gas pressure spring is sufficient in a sitting position. However, this device has the disadvantage that the foot part is always adjusted depending on the head part, independent adjustment for example, the foot part is not possible.

Furthermore, this device has the disadvantage that both the middle part as well as the head part in the connected area in the Seat position below the support level of the frame so that Support strips or central beams of the bed frame, which are usually in this Area are disruptive and need to be cut out, which results in an additional design effort for the bed frame.

EP-A-0 269 528 shows a bed which has an adjustable bed Headboard and an adjustable foot section that is independent are adjustable from each other. Two gas pressure springs are required for this. Around to allow the adjustment of both the headboard and the Foot part in an optimal way for lightweight as well as heavyweights People can be reached, additional counterweights are provided, which are adjustable and based on the weight of those lying on this lying surface Person can be customized. This configuration is complex and expensive.

Facilities are also known in which the adjustment the back support part and the thigh support part independently of each other via a drive motor each. Such a facility is shown for example in WO 89/10715. You can use one electromotive actuator of the back support part and the thigh support part can be moved independently to the desired position. This facility is very comfortable, but it is also very complex and expensive. Furthermore, users of such facilities are often asked to that it is free of current-carrying elements.

The object of the invention is to provide a device for Adjustment of a back rest part and a thigh rest part To create an insert frame for a bed, its construction and operation are simple is in which the back part and the thigh part are independent of each other are adjustable and in which the functions are independent of the weight of the user and the weight and stiffness of a mattress without changes to be made can be fulfilled in an optimal manner. Of Furthermore, the user should not be uncomfortable when adjusting the support parts Positions come, but he should feel comfortable in any position.

According to the invention, this object is achieved by the in the marking of claim 1 specified features.

With this device according to the invention can be in the simplest Way of the back support part and the thigh support part of an insert frame can be adjusted for a bed, with both parts in one from the other independent position can be brought. Here the thigh support part adjusted with the help of the backrest part, only in each case the corresponding detents of the force element or the actuator have to be solved.

The force element is advantageously designed as a gas pressure spring, while the actuator from a telescopic in a hollow profile Rod exists, each between a retracted Position and an extended position can be locked. This allows everyone desired position of the corresponding parts can be set.

Another advantage arises if the actuator is designed in this way is that it is also effective as a spring, preferably as a tension spring. This will in particular reset the thigh support part supported.

The bracket by means of which one end of the adjustable length Actuator is held stationary with respect to the insert frame, consists in advantageously from a pivot bearing, which about the first pivot axis is pivotally arranged, whereby a simple structure is achieved.

Advantageously, the second pivot lever with another Leg equipped to the leg on which the gas spring is articulated is offset in the direction of the second pivot axis, the length adjustable Actuator is coupled to this further tavern. Thereby the gas spring and the length-adjustable actuator come side by side to lie and have enough space.

In an advantageous manner, the locking of both the force element as well as the actuator can be solved by actuating operator means, wherein the operator means can be accommodated in a handle.

An advantageous embodiment of the invention is that the Backrest part is equipped with slinging equipment, with counter-slinging equipment work together. This allows an upper position of the back support part be limited to the optimal location of the user Adjustment of the thigh support means. Are advantageous the counter stop means connected to the thigh support part so that this when swinging the thigh support part out of the area the lifting gear. This allows the backrest part in particular when resetting the thigh support part in one of the slings independent position.

Further advantageous design features result from the further dependent claims.

An embodiment of the invention is described below with reference to attached drawing exemplified.

Fig. 1 eine Draufsicht auf eine erfindungsgemässe Einrichtung zum Verstellen eines Rückenauflageteils und eines Oberschenkelauflageteils eines Einlegerahmens;

Fig. 2 eine Schnittdarstellung entlang Linie II-II durch die Ausführungsform gemäss Fig. 1, wobei sich Rückenauflageteil und Oberschenkelauflageteil in Liegeposition befinden;

Fig. 3 eine Ansicht der Ausführungsform gemäss Fig. 2, wobei sich der Rückenauflageteil und der Oberschenkelauflageteil in Sitzposition befinden;

Fig. 4 eine Schnittdarstellung entlang Linie IV-IV der Ausführungsform gemäss Fig. 1, wobei sich der Rückenauflageteil und der Oberschenkelauflageteil in Liegeposition befinden;

Fig. 5 eine Ansicht der Ausführungsform gemäss Fig. 4, wobei sich der Rückenauflageteil und der Oberschenkelauflageteil in Sitzposition befinden;

Fig. 6 bis Fig. 9 in schematischer Darstellung die einzelnen Ablaufschritte zum Verstellen des Rückenauflageteils und des Oberschenkelauflageteils von der Liegeposition in die Sitzposition; und

Fig. 10 und 11 in schematischer Darstellung die Ablaufschritte zum Verstellen des Rückenauflageteils und des Oberschenkelauflageteils von der Sitzposition in die Liegeposition.

It shows

Figure 1 is a plan view of an inventive device for adjusting a back support part and a thigh support part of an insert frame.

FIG. 2 shows a sectional illustration along line II-II through the embodiment according to FIG. 1, the back support part and thigh support part being in the lying position;

FIG. 3 shows a view of the embodiment according to FIG. 2, the back support part and the thigh support part being in the sitting position;

FIG. 4 shows a sectional view along line IV-IV of the embodiment according to FIG. 1, the back support part and the thigh support part being in the lying position;

FIG. 5 is a view of the embodiment according to FIG. 4, the back support part and the thigh support part being in the sitting position;

6 to 9 show a schematic illustration of the individual process steps for adjusting the back support part and the thigh support part from the lying position to the sitting position; and

10 and 11 in a schematic representation the sequence steps for adjusting the back support part and the thigh support part from the sitting position to the lying position.

1 shows a schematically illustrated insert frame 1, in which a back support part 2, a thigh support part 3, a Middle part 4 and a lower leg support part 5 are arranged. The backrest part 2 is about a first axis 6, which is attached to the insert frame 1, swiveling up. The thigh support part 3 is about a second axis 7, which is also attached to the insert frame 1, in turn can be swiveled up. The middle part 4 is held firmly in the insert frame 1.

On the thigh support part 3 is facing away from the second axis 7 Area articulated a lower leg support part 5. This lower leg support part 5 is attached to the insert frame 1 at the foot end Guides 8 guided, as will be described later.

In the back support part 2, the middle part 4, the thigh support part 3 and the lower leg support part 5 of the insert frame 1 are known Way, not shown, female connectors used on which a mattress is launched. Of course, other embodiments are also of insert frames conceivable than that shown in Fig. 1, the support parts should be trained accordingly.

In the area of the backrest part 2 there is a first pivot lever 9 provided, which is pivotable about a first pivot axis 10 on the insertion frame 1 is attached.

On the first pivot lever 9 there is an adjusting lever at the edge area 11 and 12 attached, which are equipped with support means 13 which the backrest part 2 is supported. When swiveling the first Swivel lever 9 is thus on the adjusting levers 11 and 12 and the support means 13 the backrest part 2 is also pivoted.

In the area of the thigh support part is practically identical 3, a second pivot lever 14 is provided, which is a second Pivot axis 15, which in turn is attached to the insert frame 1, pivotable is. This second pivot lever 14 is also in the edge areas an adjusting lever 16 and 17 equipped with support means 18 are on which the thigh support part 3 rests.

When pivoting the second pivot lever 14 about the second The pivot axis 15 is thus via the adjusting levers 16 and 17 and the support means 18 also the thigh support part 3 is pivoted.

The first pivot lever 9 and the second pivot lever 14 are each a leg 19 or 20 attached. On the respective one Swivel lever 9 or 14 facing away from this leg 19 and 20 a gas pressure spring 21 is articulated.

Another leg 22 is fastened to the second pivot lever 14. A length-adjustable actuator 23 is articulated on this leg 22. Of the other end area of this actuator 23 is equipped with a pivot bearing 31, which is held on the first pivot lever 9 such that it is about this and thus about the first pivot axis 10 is pivotable.

Both in the actuator 23 and in the gas pressure spring 21 are not shown, known locking means are provided, with each corresponding Length settings can be locked. These locks can by operating schematically represented operator means 24 be solved, which are designed, for example, as Bowden cables, in one single handle 25 converge.

In this exemplary embodiment, the actuator 23 is in the form of a hollow profile 29 formed therein telescopic rod 30. This is how with the gas pressure spring 21, a continuous adjustability of the linear expansion possible. Of course, other types of actuators are also conceivable, for example, only a gradual adjustment with appropriate locking allow.

In Fig. 2 are both the back support part 2 and the thigh support part 3 shown in the lying position. The first swivel lever 9 and the second pivot lever 14 are thus in the lower position. The leg 19 of the first pivot lever 9 and the leg 20 of the second Swivel levers 14 are pivoted against each other, between them Both legs 19 and 20 arranged gas pressure spring 21 is in the retracted position.

3 are both the first pivot lever 9 as well as the second pivot lever 14 in the pivoted-up position. By pivoting up the first pivot lever 9, the back support part is also 2 has been pivoted up about the first axis 6, since this on the Support means 13, which are arranged on the adjusting levers 11 and 12, respectively is. By pivoting the second pivot lever 14 is also the thigh support part 3 has been pivoted up, since this on the support means 18 is supported, which is attached to the actuating levers 16 and 17 are. By swiveling the thigh support part 3 is also the Lower leg support part 5 has been raised, since this with the thigh support part 3 is coupled. The one facing away from the thigh support part 3 The area of the lower leg support part 5 is displaced along the guides 8 been.

The leg 19 of the first is in the seating position thus achieved Swivel lever 9 and the leg 20 of the second actuating lever 14 from each other been pivoted away, the 19 and 20 arranged between these two legs Gas pressure spring 21 is thus in an extended position.

The lying position is again shown in FIG. 4. The first Swivel lever 9 and the second swivel lever 14 are in the swiveled Location. The leg 22 is in the against the first Swivel lever 9 pivoted position. Accordingly, the actuator 23 in the retracted position.

In the sitting position, as shown in Fig. 5, has the pivoting up of the first pivot lever 9 has no influence on the actuator. The pivoting up of the second pivot lever 14, however, causes the Tavern 22 is pivoted away from the first pivot lever 9, the actuator 23 is thus in the extended position.

It is conceivable for the length-adjustable force element 21 and the length-adjustable To accommodate actuator 23 in a box-shaped element, which can be equipped with recesses and on the swivel levers 9 and 14 can be placed and attached in modules. The ends of the Legs 19, 20 and 22 could be spherical, for example and engage in slit-shaped holding elements that have the corresponding ends of force element 21 and actuator 23 form.

The mode of operation of the invention is described below Establishment described. In the lying position, as shown in Fig. 6, are the first pivot lever 9 and the second pivot lever 14 in the position swiveled down. The backrest part, not shown and thigh support part 3 are also in the lying position. The gas pressure spring 21 and the actuator 23 are in the retracted position and are locked in this position.

On the leg 19 of the first pivot lever 9 is a lever 26 with articulated at one end. At the other end of the lever 26 is one Stop surface 27 attached. The lever 26 lies with this other end region sliding on a cam 28, which acts as a counter-stop for the stop surface 27 is used, and which is attached to the second pivot lever 14.

If now an adjustment of the lying position, as shown in Fig. 6 is to be made into the sitting position, is by the person which, for example, lies on the lying surface, the locking of the gas pressure spring 21 solved. This gas pressure spring causes the first to swing up Swivel lever 9, as shown in Fig. 7, since the second swivel lever 14 is prevented from pivoting by the locked actuator 23. The Adjustment levers 11 and 12 thus swivel upwards and take over the support means 13 with the back support part 2, not shown. Swiveling up with the lock released, until the stop surface 27 of the lever 26 on the cam 28 comes to rest. Another swing up the backrest part 2 is therefore not possible. In this position the Gas spring 21 locked by releasing the operator means 24 (Fig. 1).

In the limited by the stop surface 27 and the cam 28 Position, the seating position is optimal for the user. Furthermore, in this Location optimal leverage of the legs 19 and 20 is achieved.

When this position is reached, the user can now release the lock release the actuator 23. The backrest part 2 and thus the adjusting lever 11 and 12 can now be swiveled slightly downwards Swiveling movement is via the leg 19, which is locked in length Gas pressure spring 21 and the leg 20 on the second pivot lever 14 transmitted, which is pivoted up until the desired or the fully extended Position of the actuator 23 is reached, as shown in Fig. 8. When the second pivot lever 14 is pivoted up, the thigh support part also becomes 3 pivoted up. In this position, the actuator 23 locked in an extended position.

The backrest part 2 can now be adjusted as desired the locking of the gas pressure spring 21 is released. By lifting the upper body the person lying on the lying surface presses the gas pressure spring 21 the backrest part 2 upwards, as shown in Fig. 9, the person can also exert a slight pressure on the backrest part 2, whereby this could be further reduced, for example. Of the second pivot lever 14 is pivoted about the locked actuator 23 hindered.

Of course, the thigh support part 3 could be any can be set by releasing the locking of the actuator 23.

To now from the sitting position, as shown in Fig. 9, again to reach the lying position, the locking of the actuator 23 is released. The second pivot lever 14 can now be pivoted down again, what can be achieved by light pressure on the thigh support part 3 can, while the backrest part 2 is released, so that the first Swivel lever 9 can still swing up slightly. The swinging down of the second pivot lever 14 can be facilitated by that Actuator 23 is designed so that it is also effective as a tension spring. This can be achieved, for example, in a known manner, not shown be that between rod 30 and hollow cylinder 29 (Fig. 1) a tension spring is used.

The pivoted down position of the second pivot lever is in Fig. 10 shown. The stop surface runs over during this adjustment process 27 of the lever 26, the inclined cam 28, the stop surface 27 thus limits the pivoting movement of the first pivot lever 9 and consequently the back support part 2 is not, as can be seen from FIG. 9.

Now that the position shown in Fig. 10 is reached, the Thigh support part 3 is thus in the horizontal position and the second Swivel lever 14 is in the swiveled down position, it will Actuator 23 locked. The second pivot lever 14 can therefore no longer be pivoted will. Then the locking of the gas pressure spring 21 is released, a slight pressure can thus be applied to the back support part 2, whereby this can also be pivoted back into the horizontal position can, and the first swivel lever assumes the swiveled down position, as shown in Fig. 11. Overrun during this movement the stop surface 27 the cam 28, which for this purpose in a known manner on an inclined plane. After reaching the lying position the gas pressure spring locked.

Of course, the adjustment of the backrest part works and thigh support part also when the stop means 26, 27 and the counter stop means 28 is dispensed with. Swiveling up the backrest part 2 is then limited by the fully extended gas pressure spring 21.

This device according to the invention, which is very simple in construction is possible, a simple adjustment of a lying surface from a lying position in a sitting position, the back support part 2 and the thigh support part 3 independently of one another in the position desired for the user can be brought. This facility works independently of Weight of the person lying on the lying surface and the mattress and their Stiffness. It is therefore not necessary to make any adjustments.

Of course, it is also conceivable to still on the backrest part attach a headboard, regardless of the position of the backrest part can be adjusted. Likewise, an additional one can be easily made Device for elevating the feet can be attached.

Claims (12)

Device for adjusting a backrest part (2) and one Thigh support part (3) of an insert frame (1) for a bed, in which the back support part (2) about a first axis (6) and the thigh support part (3) are pivotable about a second axis (7) and between the back support part (2) and thigh support part (3) a middle part (4) is provided is, which is firmly held in the insert frame (1), and in which a first Swivel lever (9) is provided which interacts with the back support part (2), and which is pivotable about a first pivot axis (10) and at least has a leg (19), and in which a second pivot lever (14) is provided, which interacts with the thigh support part (3), and which is pivotable about a second pivot axis (15) and at least has a leg (20), the first axis (6), the second Axis (7), the first pivot axis (10) and the second pivot axis (15) in are arranged substantially parallel to each other in the insert frame (1), and the swivel levers (9, 14) can be swiveled via adjusting elements, characterized in that that between the leg (19) of the first pivot lever (9) and the leg (20) of the second pivot lever (14) an adjustable length Force element (21) is arranged that between one with respect to the Insert frame (1) fixed bracket (31) and the leg (20) of the second pivoting lever (14) a long adjustable actuator (23) is arranged and that the force element (21) and the actuator (23) in each set Length can be locked and released. Device according to claim 1, characterized in that the length-adjustable force element is a gas pressure spring (21), which in each any position between a retracted position and an extended position Position can be locked. Device according to claim 1 or 2, characterized in that that the length-adjustable actuator (23) from a hollow profile (29) and one therein telescopically displaceable rod (30), which in any Position or gradually between a retracted position and a extended position can be locked. Device according to one of claims 1 to 3, characterized in that that the actuator (23) is designed such that it additionally as Spring, preferably as a tension spring, is effective. Device according to one of claims 1 to 4, characterized in that that the bracket consists of a pivot bearing (31), which is arranged to be pivotable about the first pivot axis (15). Device according to one of claims 1 to 5, characterized in that that on the second pivot lever (14) next to the leg (20) a further leg (22) is provided, which is directed towards the leg (20) the second pivot axis (15) is offset, and that the length adjustable Actuator (23) is coupled to this further leg (22). Device according to one of claims 1 to 6, characterized in that that two adjusting levers (11, 12 or 16, 17) are attached, which on the pivot levers (9, 14) facing away Areas are equipped with support means (13 or 18) which the back support part (2) or the thigh support part (3) is supported are. Device according to one of claims 1 to 7, characterized in that that the locking of both the force element (21) and the Actuator (23) can be released by operating operator means (24) and that when the operator means (24) are not actuated, the force element (21) and the Actuator (23) are locked. Device according to one of claims 1 to 8, characterized in that that the backrest part (2) is equipped with slings (26, 27) which cooperate with counter-stop means (28) and which limit an upper position of the backrest part (2). Device according to claim 9, characterized in that the Counterstop means (28) interact with the thigh support part (3) in such a way that this when swiveling the thigh support part (3) get out of the area of the lifting gear (26, 27). Device according to claim 9 or 10, characterized in that the slings consist of a lever (26), one end of which is coupled to the leg (19) of the first pivot lever (9) and the latter other end area is equipped with a stop surface (27). Device according to one of claims 9 to 11, characterized in that that the counter-stop means consist of a cam (28), which is attached to the second pivot lever (14) on which the with Stop surface (27) equipped lever (28) slidably rests.

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