EP3243493B1 - Bed, in particular hospital or home care bed, with means for helping an individual to stand up comprising a sensor with an energy generation element - Google Patents

Description

The present invention relates to a bed, in particular a hospital bed or nursing bed, with means for supporting getting up.

Under the name "eleganza 1", the applicant offers a bed which is equipped with means for supporting the rising of a bed occupant. The means include a handle called a Mobi-Stick. The handle is attached to a bracket on one side of the bed. The handle enables a resident sitting on the edge of the bed to pull up on the handle and / or to be supported on the handle when leaving the bed, ie when standing up. In addition, switches are provided on the handle, which the resident can hold, pull up or support with his thumb while holding on to the handle in order to adjust the height of the lying surface. The adjustment of the lying surface supports the resident and relieves the resident when he gets up. This means of supporting getting up is also used for other beds by the applicant, in which case it is sometimes referred to as a Mobi-Lift.

In practice, the handle described is of great service to the residents. It helps mobilize residents and helps relieve nursing staff.

A disadvantage of the handle is that it has a fixed position on one side of the bed. If a resident can leave the bed with the help of the handle on both sides, a handle must be provided on each side. It is complex. The connection of the switches integrated in the handle with a control for drives for the lying surface adjustment also requires an installation effort that is not negligible, particularly because of the cable routing. This can be eliminated by radio interfaces in the sensor and in the actuator and by batteries to supply the sensor with energy, then the battery charge level must be checked regularly, which requires additional effort in practice.

This is where the present invention comes in.

The present invention is based on the object of proposing a bed with means for supporting the getting up of a bed occupant which is designed to be less complex.

The object is achieved in that the sensor has at least one element for generating energy, with which the energy required for the generation and transmission of the control signal can be generated from the actuation of the actuating element of the sensor.

The sensor is therefore independent of a wired power supply or a power supply with a battery. Then no consideration is given to a cable routing between the sensor and an energy source. It is also not necessary to ensure that batteries ensure an adequate energy supply. There is no need to pay attention to the state of charge of batteries.

From the document WO 2007/075701 A1 , Page 97, lines 26 to 31, it is known to provide an electromechanical structure for the power supply of a control module ( "control module "), which makes it possible to use a mechanical movement to generate a current or electricity, which is then used to charge a battery that can be used to operate the control module. The electromechanical structure can be a coil with a magnet or a piezo generator. Unlike the invention, the mechanical movement is in the Lesson from the document WO 2007/075701 A1 not in connection with an actuation of an actuating element of a sensor. In addition, the mechanical movement according to the teaching of the document WO 2007/075701 A1 obtained electrical energy is not used to generate and transmit the control signal, as is the case with the invention. The electrical energy obtained through the mechanical movement is rather used to charge a battery, from which this is documented WO 2007/075701 A1 disclosed control module is supplied with a voltage.

The interface of the sensor and the interface of the actuator of the control system of a bed according to the invention can be radio interfaces. This means that a cable connection between the interfaces is also unnecessary and there is no need to take a cable into account when placing the sensors. If several actuators are provided in a bed according to the invention, each actuator preferably has an interface or radio interface.

The sensor and the actuator (s) can correspond to the EnOcean standard or a similar standard. Sensors and actuators communicate via radio interfaces and the sensors according to the EnOcean standard have an element for the generation of energy. Sensors and actuators based on the EnOcean standard are increasingly being used in house installations to control lights, blinds and other components of house technology. Sensors and actuators in accordance with the EnOcean standard are not used within a bed, in particular a nursing or hospital bed.

The sensor of the control system of a bed according to the invention can have at least one fastening element with which the sensor can be attached to the head part, the foot part and / or the side part, and the head part, the foot part and / or the side part of the bed can have a holding structure or holding structures on which the sensor can be detached by interaction with the at least one fastening element can be attached.

Because the sensors have one or more fastening elements with which the sensor can be detachably attached to the bed, good positioning of the sensor of the control system of a bed according to the invention is achieved.

The sensor can preferably be fastened to the holding structure or the holding structures without tools and then released again.

A bed with a control system, which offer wireless signal transmission from the at least one actuating element to a switching element or setting element, in which at the same time an element is provided in the sensor for obtaining the energy necessary for generating the signals to be transmitted, so that on a wired power supply for the sensor can be dispensed with, allows the sensor with its fastening elements to be freely positioned on the holding structures on the at least one side part, the foot part and / or the head part.

The element for obtaining the energy necessary for generating the signals to be transmitted can be a piezo element or an electrodynamic energy converter.

The actuating element can be suitable and set up for mechanical actuation and can be operatively connected to the piezo element or the electrodynamic energy converter. The The actuating element can be, for example, a rocker or a button or can be actuated via a rocker or a button.

According to the invention, provision can be made for an activation signal to be sent to the receiver-side parts of the control system by simultaneous actuation of all or some of the actuation elements of the sensor, with which the receiver-side parts are activated for the reception of control signals.

A bed according to the invention can have at least one further motor, for example for adjusting the inclination of the lying surface or a part of the lying surface.

In the sensor of the control system of a bed according to the invention, the fastener can be a receptacle z. B. form with undercut edges. The receptacle can be plugged, clipped or pushed onto the holding structure of the side part, the head part or the foot part and the holding structure can be designed to be complementary to the receptacle.

It is particularly advantageous if a bed according to the invention has a handle as a means to support getting up and the handle and the sensor form a common component of the bed. The bed occupant can then grasp the handle of the bed to hold or support it. At the same time, the bed occupant can actuate the actuation element (s), for example to control the motor for raising or lowering the lying surface. Raising or lowering the lying surface can make it easier for residents to get out of bed or get into bed.

The handle may have a foot that has the fastener or fasteners and a head. The head and the foot of the handle or sensor can preferably be rotatably connected to one another. The at least one actuating element can advantageously be provided in or on the head. It is then possible to turn the head with the at least one fastening element arranged thereon or therein so that the occupant can easily reach and actuate the fastening element or the fastening elements when gripping it. The at least one actuating element should preferably be reachable with the thumb of the hand with which the resident grips the handle.

The handle can be ergonomically shaped. In particular, the head can essentially have a spherical shape or a barrel shape.

Such a bed can make a valuable contribution to the fact that a well-cared-for person regains autonomy, especially in nursing and elderly care.

A significant advantage of the bed according to the invention is that the sensors can be used free of the constraints of a wired (or battery-based) power supply and free of the constraints of a wired signal transmission. They can be freely positioned in a variety of ways, so that they can be reached comfortably by the cared person or a caring person and possibly without restricting the safety of the cared person.

Another important advantage of the bed according to the invention is that the sensors can be easily spatially separated from one another and from other parts of the control system. Thus, the sensors can be easily taken into a different room than the one in which the actuators assigned to the sensors are provided.

It is possible that a sensor is used to control several drives of a bed, so that the different assemblies of the bed are set so that one can leave the bed comfortably and get into the bed comfortably.

It is possible to remove the sensor of a bed according to the invention from the bed and to fasten it to a wheelchair or a walking aid. A bed can be comfortably controlled from the wheelchair or from the walking aid using the sensor attached to it, so that the components of the bed take up the positions for easy entry. After boarding or even while getting into bed, the sensor can then be attached to the bed again.

Another important advantage of the control system according to the invention is that a sensor of a nursing bed too Actuators can respond outside the bed, for example actuators with which, for. B. the ceiling light is switched on and off or blinds or windows can be opened or closed.

The actuating elements of a sensor can have temperature sensors, motion detectors, brightness sensors, force, pressure or weight sensors or the like. Relays, digital and analog outputs, dimmers, etc. are particularly suitable as actuators.

A sensor can have not only one, but also several actuating elements with which the same or different control signals can be generated. A sensor can be designed in such a way that the actuating element or the actuating elements generate the same or different control signals simultaneously when actuated or the same or different control signals when actuated differently. Different actuations of a sensor could be achieved in that the sensor has several rockers or buttons or the rocker or button can be moved in different ways, for example in two different directions or at different speeds.

According to the invention, the sensor can have a protective element with which the actuating element can be protected against unintentional actuation. The protective element can be, for example, a cover which is attached to a housing of the sensor such that it can be pivoted or pushed.

It is particularly advantageous that several actuators of the control system can be programmed to do this record the same control signal output by the sensor or one of the sensors. Based on this control signal, the switching element of the actuator or the switching elements of the actuators for switching the at least one current path or the setting element of the actuator or the setting elements of the actuators for setting the at least one voltage, the at least one current or the other physical variable are triggered on the basis of the control signal. It is therefore possible to address several actuators simultaneously by means of a sensor and a control signal emitted by this sensor. These actuators are programmed in such a way that they record the control signal and control the switching element or the setting element on the basis of the recorded control signal. A (central) control device is not necessary in order to switch on or off or set different assemblies or devices at the same time. Nevertheless, a (central) control device can be provided which receives the control signal and controls a plurality of switching elements or setting elements.

All or some of the actuators can be arranged in a common housing. The switching elements and / or the setting elements can also be attached to the modules to be switched and / or set outside the housing. The switching elements and / or the setting elements can also be attached within the housing and connected to the modules to be switched and / or adjusted via cable connections.

Fig. 1

eine Ansicht einer Griff-Sensor-Einheit von vorne,

Fig. 2

eine Ansicht der Griff-Sensor-Einheit von hinten,

Fig. 3

eine Ansicht der Griff-Sensor-Einheit von der Seite,

Fig. 4

eine Ansicht der Griff-Sensor-Einheit von unten,

Fig. 5

eine Ansicht der Griff-Sensor-Einheit von oben,

Fig. 6

einen Schnitt durch die Griff-Sensor-Einheit gemäß der Linie VI-VI in Fig. 1,

Fig. 6a

eine Einzelheit VIa aus Fig. 6,

Fig. 6b

eine Einzelheit Vlb aus Fig. 6,

Fig. 7

einen Schnitt durch die Griff-Sensor-Einheit gemäß der Linie VII-VII in Fig. 1,

Fig. 8

einen Schnitt durch die Griff-Sensor-Einheit gemäß der Linie VIII-VIII in Fig. 1,

Further features and advantages of the present invention will become clear from the following description of preferred exemplary embodiments with reference to the accompanying figures. In it show:

Fig. 1

a view of a handle sensor unit from the front,

Fig. 2

a view of the handle sensor unit from behind,

Fig. 3

a side view of the handle sensor unit,

Fig. 4

a view of the handle sensor unit from below,

Fig. 5

a view of the handle sensor unit from above,

Fig. 6

a section through the handle sensor unit along the line VI-VI in Fig. 1 .

Fig. 6a

a detail from VIa Fig. 6 .

Fig. 6b

a detail from Vlb Fig. 6 .

Fig. 7

a section through the handle sensor unit along the line VII-VII in Fig. 1 .

Fig. 8

a section through the handle sensor unit along the line VIII-VIII in Fig. 1 .

The handle sensor unit, hereinafter also referred to briefly as a unit, of a bed according to the invention has a head 2 and a foot 1. The head 2 is rotatably attached to the foot 1.

The foot 1 has a fastening element 11, which forms a receptacle A. A holding structure of the bed can be introduced into the receptacle A for the purpose of fastening the unit to a bed according to the invention. The fastening element 11 has two projecting legs 111 which are arranged at a distance from one another at a first end of the foot 1. The two legs 111 and a 112 web connecting them limit the approximately C-shaped receptacle. The legs 111 have ends 1111 facing each other, which results in undercuts.

The legs encompass the holding structure of a bed according to the invention or another object, for example an ambulance, in particular a wheelchair, or a walking aid, in particular a forearm crutch or a walker, which is introduced into the receptacle A. Since the receptacle is open on the side, elongated holding structures can also be introduced into the receptacle, in particular a handrail or an end strip on a head part, a foot part or a preferably lowerable or extendable side part. If the handrail or the end strip has an at least partially uniform cross section and is shaped uniformly on the inside cross section of the fastening element 11, that is to say the receptacle, it is possible to move the foot 1 on the holding structure in order to fix its position. The clear cross section of the receptacle A is preferably matched to the outer cross section of the holding structure.

In addition to the fastening element 11, the foot 1 has a turntable 12. This turntable 12 is formed by an edge which is circular in cross section. A crown gear toothing 13 is provided within the rotating ring 12 and coaxially therewith. Within the crown gear toothing 13 and coaxially therewith is a pin 14 arranged. The pin 14 has a central hole through which a screw 3 is passed, the screw head 31 of which rests on a shoulder 141 of the bore. Aside from shoulder 141, the hole has a hexagonal cross section, so that an external hexagon of the screw head can be rotatably recessed in the hole.

Within the shoulder through which the shaft of the screw 3 is guided, the hole preferably has a circular cross section. The screw 3 protrudes from the pin 14.

The head 2 of the unit has a housing with two symmetrical housing shells 21, 22. The housing shells 21, 22 are connected by gluing, but can also be connected to one another in any other suitable manner, for which purpose structural changes to the housing shells 21, 22 may be necessary. The housing shells 21, 22 form a base, which serves to connect the head 2 to the foot. The base has a ring 25 with a circumferential shoulder, which engages in the turntable 12 or is seated on the turntable 12 with the interposition of an O-ring 4. A crown toothing 26 is provided on the ring, which is coaxial to the ring 25 and which engages in the crown toothing 13 of the foot. The crown teeth 13, 26 are toothed in the same way.

The pin 14 engages in the ring 25 and forms a pivot bearing for the pin 14.

The assembled housing shells 21, 22 form a barrel-shaped handle, which can be enclosed by one hand in order to hold on, support or pull up on the unit.

The housing also has a housing insert 23. This is inserted into an opening which is released from the assembled housing shells 21, 22. The housing insert 23 is formed in the manner of a trough and accommodates a sensor 5 of the unit. The housing insert 23 and the sensor 5 arranged therein are covered on the outside by control elements 6, namely two rocker switches 61, 62 and a button 63.

The rocker switches 61, 62 are pivotally mounted on pins and / or axes of the sensor and are supported via first pins 621 on reset and energy generating elements 51 of the sensor 5. The rocker switches 61, 62 can be deflected by actuation from a rest position predetermined by the reset and energy generation elements 51. The reset and energy generating elements 51 of the sensor are also deflected thereby. As a result, the energy required for the generation and transmission of a control signal is generated in the sensor 5. If the actuation is then omitted, the reset and energy generating elements 51 press the rocker switches 61, 62 into their rest position. Second pins 622 of the actuating rockers 61, 62 rest on actuating elements 52 of the sensor. By deflecting the rocker switches 61, 62, the second pins 622 move the actuating elements 52, which leads to the generation and transmission of the control signal, which can be received by an actuator of the control system of the bed, and subsequently to the switching of a switching element, if a part on the receiver side a control system of a bed according to the invention is activated. If the receiver-side part of the control system, which includes the actuators, is not activated, no switching elements are switched.

The sensor 5 has four actuating elements 52, two actuating elements 52 being able to be actuated by each of the two rocker switches 61, 62.

The button 63 has a button 631 which protrudes outwards into a recess between the rocker switches 61, 62. The button 63 has first pins 631 which are supported on the reset and energy generation elements 51 of the sensor. In addition, the button 63 has four second pins 632, one of which abuts an actuating element 53 of the sensor. The button 53 is linearly displaceable. If the button 53 is pressed, all four second pins press the actuating elements 52 of the sensor 5, which leads to the generation and transmission of an activation signal. By receiving this activation signal, the part of the control system on the receiver side, which also includes the actuators of the control system, can be activated.

The simultaneous pressing of all four actuating elements 52 when the button 53 is actuated thus activates the control part on the receiver side. Only when the control part on the receiver side is activated is the control part on the receiver side able to process the control signal sent by the sensor 5 due to the actuation of an individual actuating element 52 by means of the rocker switches 61, 62 and to switch switching elements in accordance with the control signal. If the control part on the receiver side is not activated, the control signals caused by the actuation of an individual actuating element 52 remain without a reaction recognizable by the switching elements.

If the part of the control system on the receiver side is activated, control signals can be received within a predetermined time to control the switching elements. If there is no actuation within this predetermined time, the part of the control system on the receiver side falls back into the non-activated state.

The activation of the receiver-side part of the control system by the simultaneous actuation of all or many actuation elements of the sensor can also be possible with a differently designed sensor of a bed according to the invention and is not only possible with the handle sensor unit shown in the figures.

The head 2 is secured to the foot 1 by means of a nut 7. For this purpose, the nut 7 is screwed onto the screw 3 which projects into the head 2. Between the nut 7 and the ring 25 of the head 2, a spring 8 is inserted, which is supported on the one hand on the nut 7 and on the other hand on the ring 25. The head 2 can be pulled away from the foot 1 against the pressure of the spring 8 in the direction of the screw 3. The crown teeth 13, 26 of foot 1 and head 2 are thus free from one another and head 2 can be freely rotated relative to foot 1. If you let go of the head 2 in the desired position, the spring 8 pulls the head 2 to the foot 1. The crown teeth 13, 26 come into engagement and the head 2 is fixed to the foot 1.

Claims (15)

1. Bed, in particular medicinal bed, for example hospital or home care bed,

   - having a height-adjustable lying surface on which a mattress lies,

   - having a head part, a foot part and/or at least one side part, which protrude or protrudes at least in one state of the bed beyond the mattress of the bed,

   - having a motor for the height-adjustment of the lying surface as a means for supporting the standing up,

   - having a control system for controlling the motor for the height-adjustment, wherein the control system

   - has at least one sensor (5),

   - which has at least one actuating element (52) which can be actuated for the generation of a control signal and

   - which has an interface for outputting the control signal,

   - has at least one actuator

   - which has an interface via which the control signal can be received into the actuator, and

   - which has a switching element for switching at least one current path or an adjusting element for adjusting at least one voltage, one current or another physical variable on the basis of the received control signal,

   characterised in that

   - the sensor has at least one element (51) for producing energy, with which the energy necessary for the generation and transmission of the control signal can be generated from the actuation of the actuating element of the sensor (5) from outside.
2. Bed according to claim 1, characterised in that the sensor (5) has at least one fastening element (11) with which the sensor (5) can be mounted on the head part, the foot part and/or the side part.
3. Bed according to claim 2, characterised in that the head part, the foot part and/or the side part have a holding structure or have holding structures on which the sensor (5) can be fastened without a tool by means of interaction with the at least one fastening element (11).
4. Bed according to any of claims 1 to 3, characterised in that the interface of the sensor (5) and the interface of the actuator are radio interfaces.
5. Bed according to any of claims 1 to 4, characterised in that the element (51) for producing is a piezoelectric element or an electrodynamic energy converter.
6. Bed according to claim 4, characterised in that the actuating element is suitable and configured for mechanical actuation and is in operational connection with the piezoelectric element or the electrodynamic energy converter.
7. Control system according to any of claims 1 to 6, characterised in that the actuating element (52) has a rocking bar or a button or can be actuated via a rocking bar (61, 62) or a button (63).
8. Control system according to any of claims 1 to 7, characterised in that a receiver-side control part, which comprises the actuator or the actuators, can be activated by the simultaneous actuation of all or some actuating elements (52) of the sensor (5).
9. Bed according to any of claims 1 to 8, characterised in that the bed has at least one further motor, for example for adjusting the inclination of the lying surface or of a part of the lying surface.
10. Bed according to any of claims 1 to 9, characterised in that a handle-sensor-unit comprising the sensor (5) at the sensor as fastening element (11) is provided a receiver (A) e.g. having undercut edges.
11. Bed according to claim 10, characterised in that the receiver (A) is set onto, clipped onto or pushed onto the holding structure and the holding structure is formed in a complementary manner to the receiver (A).
12. Bed according to any of claims 1 to 11, characterised in that the bed has a handle (G) as a means for supporting the standing up and the handle (G) and the sensor are parts of the handle-sensor-unit of the bed.
13. Bed according to claim 12, characterised in that the handle (G) has a foot (1) which has the or the fastening elements (51) and has a head (2) which are preferably rotationally connected with one another.
14. Bed according to claim 12, characterised in that the at least one actuating element (11) are provided in or on the head.
15. Bed according to any of claims 12 to 14, characterised in that the handle (G), in particular the head (2) is substantially spherical or barrel-shaped.

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