DE102005031820B4 - Manual operation for adjusting drives - Google Patents

Abstract

A manual control (1) for adjusting drives for adjusting parts of furniture that are used in the care, home and / or hospital area should be designed in such a way that the first fault safety is given and that there is a large possibility of adaptation to different adjusting drives, whereby satisfactory profitability is to be achieved. DOLLAR A According to the invention, the switch arrangement (6) has a first switch (17) which can be actuated by an adjustable transmission element. In a preferred embodiment, the actuating element is a rotatable switching disc (31), into which a transmission element in the form of a permanent magnet (35) is inserted in order to activate a reed contact in each case in certain positions. The arrangement is such that all functions of the manual control (1) can be blocked, that all functions can be triggered for the nursing staff, while only certain functions are provided for the patient. The switching disc (31) is actuated by an actuator (27) which is provided with an arrow-shaped but asymmetrically shaped extension (30) which can be inserted into an opening (29) in the switching disc (31) which is accessible from the outside. DOLLAR A The manual control (1) according to the invention is particularly suitable for such adjustment devices that are used for care beds, hospital beds and the like.

Description

The The invention relates to a manual operation for adjusting drives, in particular for one Electromotive adjusting drive device for the adjustment of Sharing furniture in the care, home and / or hospital area, the at least one Drive motor and a control device, wherein the manual operation Operating buttons for actuating the chosen furniture part in a desired adjustment and a switch assembly for disabling certain operating functions and having at least one first switch, which formed operable by an adjustable, arranged in an actuating element transmission element is.

such Electric motors are for Applications known for example for adjusting furniture, especially beds, with their rotational movement via a transmission, preferably a so-called spindle / Spindelmuttergetriebe in a linear motion is converted. Execution Such a motor can be a DC or AC motor be with a flanged worm gear.

Especially for the Use in the care sector or in the hospital area to comply with special safety regulations. This includes, for example the so-called first fault safety according to the relevant standards EN 60601-2-38 and EN 1970. Furthermore, the one in the bed may Person not all adjustment functions of the adjustment accordingly their health, using so-called barriers, preferably in the form of switch arrangements are used only by authorized persons using a suitable tool can be adjusted.

From the DE 298 01 795 U1 a hygienic hand control for hospital furniture is known in which two switches in the form of reed contacts are installed in the handset housing. In the housing, two recesses are provided, can be inserted into the pins of a magnetic key to position this magnetic key exactly to the switches. In the magnetic key two permanent magnets are installed, whereby the switches can be switched. For the patient, either control buttons or the functions triggered by them can be disabled. For this purpose, the hand control is equipped with electronics that stores whether the control button is locked or not. If a locked key is pressed, the drive arrangement does not react. As a result, only the unlocked keys can be used by the patient to trigger the respective function.

Should the locking of the operation keys are changed, the magnetic key is turned on the housing stated. The permanent magnets actuate the reed contacts. As soon as both reed contacts pressed are, the electronics of the controller goes into a programming mode, which is maintained until the magnetic key is removed again. If the electronics of the controller are in programming mode, so does the operation of a Locked operation key their unlocking and the operation of a unlocked operation key their blocking. In this way, the Locked state of each button changed become. After removing the magnetic key, the controller is located again in normal operation and the unlocked buttons can for Movement of the components of the bed can be used. The handset can Furthermore be equipped with signal lights to indicate whether a Operation button is locked or not.

From the DE 94 04 382 U1 a furniture drive is known in which the handset is designed so that selected or all actuators associated with the respective function directly or time-delay triggering additional switching device. This ensures that the furniture drive by a person can not be put into operation at all or that only harmless functions can be triggered. The nursing staff can trigger any function due to the additional switching device. However, certain steps must be taken to do this, which are easy to remember. The additional switching device may include a time switching element that delays the triggering of the respective function. This causes the authorized persons to operate the actuator for a predetermined time, otherwise the function is not triggered. A brief actuation thus remains ineffective. Alternatively, the additional switching device may be equipped with a comparator, in which a certain sequence of actuated, free actuating elements can be stored, so that upon actuation of the additional switching device associated actuators the function can be triggered only in combination with the sequence of stored actuators.

Alternatively, it is also proposed that the authorized persons need additional instruments. A simple solution is achieved when the additional switching device includes an actuated by a magnetic field switch. This magnetic switch is closed by the magnetic field, so that the function is triggered when the actuating element is actuated and the magnetic field is established. In particular, the magnetic field is generated by a permanent magnet, which is attached to the outside of the housing of the manual switch can be set. According to a further solution, it is also proposed that the additional switching device includes a signal generator generating a signal field when the actuating element is actuated, and that this signal field can be changed to trigger the function by means of a loose additional part. This signal field could also be triggered by a permanent magnet.

From the DE 102 12 953 A1 an operating device for an electrical appliance is known, for example, from hobs or ovens. The operating unit consists of a disc-shaped bearing device and a rotary knob rotatably mounted thereon. By means of a holding magnet, the operating unit can be removably attached to a cover with a corresponding second holding magnet. On the rotary knob circumferentially distributed, magnetically effective sections are attached. These cancel when turning over corresponding Hall sensors, which are arranged stationary below the cover. The Hall sensors are connected to a controller for evaluating a rotary actuator. The operating device further comprises signal means for generating signals which are generated as a function of a position and / or a position change of the rotating device. Furthermore, the operating device has a controller for processing the signals for influencing the electrical appliance. By turning the rotating device, the electric device can be controlled as desired.

From the DE 202 12 653 U1 a device for entering a control command for seating and reclining furniture is known. This device is equipped with a two-part housing, in which an electronic control system is arranged with at least one actuating element. The first part of the housing, the control electronics and the actuator can be combined with each other according to a modular system. The actuator is a switch in the form of a pressure switch, a key switch, a toggle switch or a touch sensor. Regardless of the design of the actuator is characterized by a pictogram. For the input of a control command, the device is provided with two actuators, which are arranged side by side. An actuator is designed for a control command in one direction and the second actuator for a control command in the opposite direction.

DE 94 13 248 U1 describes a hand-held device with an additional locking element, wherein a two-handed operation is required, which prevents a user is exposed to the adjustment of furniture parts, for example, no risk of trapping his hands. The disadvantage here is that the user can operate this locking device itself and without tools.

Farther Handheld controls are known, which select buttons and direction buttons , both of which must be operated simultaneously to a desired one To allow adjustment.

As well are switch assemblies with different functions and actuation means known, which have generally proven, but with a first-fail-safe execution have considerable scope of components.

adversely it is also that these designs are not so versatile that they are many different Verstellantriebsausführungen without big ones changes and accessories adapt, so that a very wide variety of different Types exists.

The Invention has the task of a first-fail-safe manual operation to create a big one adaptability has at different adjusting drives, with respect to the state The technology is created improved economy.

The solution The object is achieved in conjunction with the preamble of the claim 1 according to the invention the characterizing features of claim 1.

A such embodiment creates a handset for Adjustment drives, in particular for an electromotive adjustment drive device for adjustment of parts of furniture in the care, home and / or hospital area, the at least one Drive motor and a control device, wherein the manual operation Operation buttons for operation a selected one furniture part in a desired Adjustment and a switch arrangement for locking certain Having operating functions which is characterized in that the switch arrangement has at least one first switch, which by an adjustable transmission element actuated is trained.

in this connection it is advantageous if the transmission element in an actuator is arranged, which adjustably attached to the handset is and opposite the first switch to turn it on and off in different positions is adjustable and also has recesses for actuation with a tool.

In a further preferred embodiment, the actuating element is rotatably mounted on a receiving element arranged on the housing of the manual control, this being an upper one Having region with a arranged between the top of the receiving element and the surface of the hand control umlau fenden edge with undercuts, which corresponds to a peripheral edge with undercuts, which is introduced in a recess on the facing to the surface of the manual operation side of the actuating element, wherein the Actuator is secured by a fastened in the receiving element fastener against loosening. In this embodiment, the actuating element can advantageously be easily attached to the receiving element by clipping.

In another embodiment the switch assembly on a second switch, which by a second actuator with a transmission element and / or can be actuated by an attachable transmission element.

It is advantageous in that the switch arrangement has a switch, which can be actuated by a magnetic field is formed, since thus no breakthrough in the housing required is what is especially beneficial for a splash-proof hand control is.

In In a preferred embodiment, the at least one switch a reed contact and the transmission element a permanent magnet.

It is advantageous in that the energy store is designed as a capacitor is. This results in a particularly simple and economical design.

A another embodiment sees an actuator with a certain shape before, which with a corresponding Shaping the housing corresponds to the manual operation. Thus, the actuator could moved along an edge or groove or within a recess be to switch a switch. Furthermore, could also an actuator from the outside in a recess of the housing be inserted, which by means of a switching mechanism safely on the housing the handset is held. In the latter embodiments of a actuating element is in the actuator a transmission element integrated, which is a switch mechanical, magnetic, optical or inductively switched.

there can with selection of a mechanical transmission element several transmission elements on an actuating element be formed at a predetermined distance from each other, so that for example, when introducing the actuating element into a recess of the housing the handset certain electromechanical switch switched can be.

Especially is advantageous if the transmission element a coded or normalized signal in waveform or in pulse form outputs. There are then to exclude manipulation. A particularly simple one Fixing the bracket to the housing of the hand control is given when the holder has a flange which on or in the housing of the Manual operation fixed or detachable or attachable. It should expediently the flange Receiving element or have a recess which the actuating element leads, and that the actuating element rotatable is. This simplifies operation.

In another embodiment is provided that the actuating element is designed as a switching disk, which is provided with an externally accessible opening is in which an approach of an actuator form-fitting and closing is pluggable. The actuator is then for example in a nursing bed or a hospital bed excluding the Nursing staff available, so that the nursing staff can adjust whether for the patient all Functions, only certain functions or no function at all accessible are. In order to facilitate the adjustment of the indexing disk, it is provided that the opening is designed asymmetrically, so that the actuator only in a very specific Position for switching disc insertable is. This allows the operator to immediately recognize in which switching position the switching disc is located.

In Another embodiment is provided that the opposite of the approach Area of the actuator is designed such a clip that the actuator positively and / or non-positively on a Approach of the housing is determinable. This solution offers the advantage that the nursing staff does not have the operator carry got to. It can be assumed that the person to be cared for by itself is unable to remove the actuator from the housing and make a setting.

In a preferred embodiment is the switching disc in a cup-shaped recess of the flange the holder rotatably mounted. The bottom of the pot is then Outside, so that through a hole through the opening of the switching disc used can be.

The activation of the switching elements or the reed contacts is particularly simple when a permanent magnetic field acts on them. It is therefore contemplated that the indexing disk has an opening into which a permanent magnet is used as a transmission element. In addition, the results Advantage that the magnetic field can also be transmitted through a wall, so that the switching elements or the reed contacts are protected.

In order to the switching disc only over a predetermined angular range, for example, 200 ° rotated can be, it is provided that the indexing disc a concentric has to its axis of rotation slot, in which a the cup-shaped Recess molded or applied stop pin engages. This stop pin is opposite the switching disc or to the slot fixed, so that a complete rotation the switching disc is prevented.

In order to the indexing disc is secured in the respective position is provided that on the outer surface of the Switching disc a locking cam is formed, and that in the opposite surface of the cup-shaped recess a corresponding to the number of switching elements corresponding number of provided in alignment with the switching elements standing recesses are. As a result, at the beginning of a switching process, a certain force necessary, however, becomes an unintentional turning of the switching disc prevented. To make sure the locking cam in the recess remains, it is provided that the locking cam formed on a spring bar is, by a concentric to the axis of rotation of the indexing disk extending slot is formed.

In order to the outer surface of the housing preferably is free of edges and corners, it is provided that the flange the holder is positively and / or non-positively fixed in a pocket of the housing. In order to The holder does not fall out of the bag or pulled out can, it is provided that the flange of the bracket on the Guide surfaces of the Bag-facing side is provided with two locking lugs, the Spring bars are formed and corresponding in the retracted position Reach behind noses. As a result, only the skilled nursing staff can with the help of a tool, the holder out of the bag pull out. The locking lugs carrying spring bars are by parallel and spaced from the outer surfaces of the flanges Slits formed. The resilient movement of the locking cam and the Locking noses are characterized by the shape and material springing properties of plastics.

The Invention will now be described with reference to the accompanying drawings with reference to embodiments explained in more detail. in this connection demonstrate:

1 a front view of a first embodiment of the hand control according to the invention;

2 a perspective rear view of the hand control after 1 ;

3 an exemplary schematic block diagram of the manual operation after 1 ;

4 an enlarged partial sectional view of a locking device of the manual operation after 1 ;

5 a front view of a second embodiment of the hand control according to the invention;

6 a perspective rear view of the hand control after the 5 ;

7 one of the 6 corresponding representation, but with inserted into the switch actuator;

8th the area associated with the control panel of the manual control in an exploded view with a view of the back of the hand control, and

9 the area associated with the control panel of the manual control in an exploded view with a view of the front.

1 shows a handset 1 from the front, which is equipped with controls. This handset 1 is provided in this example for a drive device with multiple drives for a nursing and / or hospital bed. A drive adjusts a back part, another motor a foot or leg part and still another the height of the bed, the drives may have one or more motors.

The parts of the bed that can be adjusted are symbolically applied to control buttons, like the 1 represents. At the top of the handset 1 In this example embodiment, there are three selection keys 2 with symbols that each have the function of selecting the back part, selecting the foot or leg section, and selecting the height of the bed, from top to bottom. Below are two directional buttons 3 . 4 arranged, with the directional key 3 for an adjustment direction OPEN and the direction key 4 is provided for an adjustment AB of each selected drive.

The operating buttons underneath are so-called function keys 5 which actuate, for example, several adjusting drives at the same time to certain already known positions set, for example, a sitting position (upper function key 5 ) or a so-called "shock position" (lower function key 5 ), where the legs of the person lying on the bed are higher than the upper body.

2 shows the back of the handset 1 with a holder 7 in the known manner at the top of the back of the handset 1 on the housing 19 is attached and with the manual control 1 for example, can be put on the edge of the bed.

Furthermore, the manual control 1 a switch assembly 6 on. This switch arrangement 6 has in known manner the function of certain operations for the user, with the operation buttons on the front of the hand control 1 can be triggered to block, so that the user can only perform him allowed adjustments of the bed. The switch arrangement 6 can only be adjusted by a supervisor with a suitable tool. The switch arrangement 6 will be described in more detail below in their construction.

The manual operation 1 is over a link 8th connected to a controller, not shown, to which the adjusting motors are connected in a known manner. The link 8th may be wireless, or as shown, consist of an electrical cable.

The following is the structure of the manual control 1 in connection with the controls and an adjustment with reference to 3 described. The elements in the figures, which have the same function or are identical, are provided with the same reference numerals.

The adjusting drive, which is not shown, has a drive motor 9 connected to an output terminal a4 of a power switching element 16 a control device 10 connected. For the sake of clarity, only one drive motor 9 shown. Every drive motor 9 is each with a power switching element 16 connected. The control device 10 is still with a power supply 11 provided, which may be in a known manner a mains voltage source, an accumulator or both. The energy supply 11 is connected to a supply terminal v3 of the power switching element 16 and over the link 8th with the manual control 1 which is shown schematically here as a rectangle with a dash-colon line. In the connecting route 8th is also a connection included, which the manual operation with a control terminal s2 of the power switching element 16 combines. The power switching element 16 For example, it consists of two relays (two directions of rotation) for a drive motor 9 ,

In the manual operation 1 is in the course of the link 8th for energy supply 11 first the switch assembly 6 connected to this. The switch arrangement 6 has a first switch in this embodiment 17 and a second switch 18 on. These are switching elements, which preferably consist of so-called reed contacts, which via a from outside the manual control 1 applied magnetic field, for example, by a known magnetic key can be actuated.

magneto Mechanical Switches such as reed contacts are particularly advantageous to look at, as opposed to them the magnetic field sensitive semiconductor switches a safe and reliable Functioning can be demonstrated.

At the first switch 17 are the selection keys 2 and the directional buttons 3 . 4 connected, which are shown here as a block. They are designed as a microswitch or pushbutton in a design of which a so-called first fault safety is proven on the manufacturer side due to high operational reliability and a large number of switching cycles. Furthermore, the second switch 18 to the first switch 17 connected and with its output using the function keys 5 connected. A switched first switch connects the power supply 11 with the selection keys 2 , the directional buttons 3 . 4 and with the second switch 18 , With the second switch 18 can use the function keys 5 be unlocked in this embodiment or locked for the user. Of course it is also possible to use the selection keys 2 and the directional buttons 3 . 4 separately with one or more second switches 18 unlock or lock. The process of actuating the first and second switches 17 . 18 will be explained in more detail below.

The selection keys 2 are with their outputs to an input terminal e1 of a control block 13 in the manual control 1 connected. For the sake of clarity, only one connection line is shown. At the same time, the outputs are the selection keys 2 with an energy storage 12 which in turn is connected to a supply terminal v1 of the control block 13 connected. Similarly, the outputs are the directional keys 3 . 4 with input terminals e3 and the outputs of the function keys 5 with input terminals e2 of the control block 13 connected, with these outputs simultaneously with the energy storage 12 are connected. They are be knew means provided that these outputs of the control buttons 2 . 3 . 4 . 5 do not affect each other, such as in each case a diode (not shown) in a connecting line to the energy storage 12 ,

The control block 13 is preferably equipped with a memory for storing data and program code.

The energy storage 12 in this embodiment is a capacitor for storing electrical energy to power the control block 13 ,

The control block 13 In this embodiment, it has two output terminals a1 and a2, and the output terminal a1 has a control input s1 of a switching element 14 connected with its supply input v2 with the outputs of the directional buttons 3 . 4 connected is. An output a3 of the switching element 14 leads via a line of the link 8th to a control terminal s2 of the power switching element 16 in the control device 10 ,

The switching element 14 In this embodiment, a transistor is the small output signal of the control block 13 amplified, so that the power switching element 16 can advantageously be easily switched with a higher control power requirement.

The number of switching elements 14 corresponds to twice the number of drive motors 9 (two directions of rotation), for reasons of clarity, only one switching element 14 is shown.

Another output terminal a2 is with one or more display elements 15 connected, which is in the manual control 1 For example, in the actuation buttons of the controls are to indicate switching states, for example, by lights, different colors and / or flashing.

It would also be conceivable to output a warning or confirmation signal via the outputs a1 or a2 or via another output not shown in more detail in order to prevent the operator from incorrect or correct operation of the manual control 1 to signal.

Another embodiment, not shown, provides that the control device 10 and the handset 1 or the power switching element 16 and the handset 1 housed in a common housing.

Another embodiment of a handset with wireless transmission link 8th sees an energy supply of the handset independent of the power supply 11 the control device 10 for example, in the form of a battery, which in a manner not shown in the housing 19 the manual operation 1 can be introduced.

The operation of the hand control according to the invention 1 with the components and components described above will now be explained.

The supply voltage of the power supply 11 lies over a line of the supply line 8th at the switch assembly 6 at. Over switched switches 17 . 18 become the selection keys 2 , Function keys 5 and direction buttons 3 . 4 connected to the supply voltage.

First, by means of a selection key 2 or a function key 5 the drive motor 9 the desired part of the bed or furniture to be adjusted by pressing the respective operating button. Its output then connects the supply voltage as an input signal to the control block 13 where a specific program in the control block 13 is started. At the same time there is a connection to the energy storage 12 which is charged with the control block 13 is supplied with energy to function. The energy supply is released after releasing the selected selection key 2 or function key 5 through the energy storage 12 maintained for a given time interval.

Now it must be within the dimensions of the energy storage 12 predeterminable time interval a direction key 3 . 4 be operated. Their output connects the energy storage 12 again with the power supply to ensure the function of the control block 13 , At the same time the output of the pressed direction button 3 . 4 to the input terminal e3 of the control block 13 and the supply terminal v2 of the associated switching element 14 connected.

Only in combination with the previous selection key 2 activates the subsequently actuated in the predetermined time interval direction button 3 . 4 one in the control block 13 stored program, which is the previously pressed selection key 2 belonging output terminal a1 activated. This passes a corresponding control signal to the control terminal s1 of the corresponding switching element 14 which connects the supply voltage applied to its supply connection v2 via the connection with the actuated direction push-button to its output connection a3. This thus switched through voltage is connected via a connecting line of the link 8th the control terminal s2 of the associated power switching element 16 supplied, which the respective drive motor 9 Turns on in the desired direction and while under tension until the pressed direction button 3 . 4 is released again.

After the pressed direction button 3 . 4 is released again, the power supply of the control block remains 13 through the energy storage 12 again exist for the duration of the predetermined time interval. Thereby, it is advantageously possible that after the adjustment of the drive motor 9 by a direction button 3 . 4 a further adjustment of the drive motor 9 by the same or the other direction button 3 . 4 is possible, for example, to correct the set and taken position.

Press the direction button 3 . 4 without a previous operation of a selection key 2 or function key 5 or outside the predeterminable time interval does not lead to activation of the drive motor 9 ,

The power supply of the control block 13 and the switching elements 14 is not constant, that is, it depends on the operation buttons as explained. In case of a defect of the control block 13 and / or one or more of the switching elements 14 this can not turn on the respective associated power switching element 16 lead and an unintentional adjustment of the drive motor 9 trigger. Thus, no accidental movement is generated in case of failure in non-actuated control buttons. This corresponds to the requirement of so-called first fault safety.

The circuit of the hand control according to the invention 1 is constructed so that the switching elements 14 only from the directional buttons 3 . 4 be supplied with supply voltage when they are actuated. Indicates the control block 13 an erroneous output signal, for example, an "ON signal", so is still no adjustment of the drive motor 9 triggered when a selection button 2 or function button 5 is pressed.

Furthermore, at an output a1, a signal element may be connected, for example in the form of a luminaire, so that the signal light and the switching element 14 be controlled simultaneously. Thus, the operator can correct the control for the selected adjustment in question switching element 14 to verify. Advantageously, the lamp is arranged in or on the associated control button.

Furthermore, the circuit is constructed so that when not in use the manual control 1 the control block 13 is reset to the original state. The original state in this embodiment looks like the control block 13 no output signals leads at its output terminals a1, which are connected to the respective control terminal of the switching elements 14 are connected. This is realized by the power supply of the control block 13 switched off (preferably automatically) is. This is through the energy storage 12 running the control block 13 only temporarily powered. The capacity of this energy storage 12 is chosen to be the power supply of the control block for a certain time interval, for example for a few seconds 13 guaranteed, but not for the power switching elements 16 to keep it active or active for a similar time interval.

The program of the control block 13 For example, it may be provided that either no signal is present at the output terminals a2 or only a specific one which corresponds, for example, to the head part adjustment.

The circuit of the manual control according to the invention is in principle first fail safe. Should the control block 13 or a downstream switching element 14 be defective, so can when pressing a direction button 3 . 4 a wrong drive with the desired procedure. This wrong adjustment is indicated by itself or as already described above by a lamp and thus recognized immediately.

In Advantageously, the first fault safety is achieved by by having all the switching elements to which one works safely can show, are in the signal and energy chain, so that as a relatively uncertain to be regarded semiconductor components this safe Switches are downstream, and that the safe switch in front Branches are arranged.

The here as a control block 13 designated block is shown only schematically for the sake of simplicity of illustration. It can also be designed as a microcontroller, sequence control, transistor network, GAL, CPLD, FPGA or in the form of further known circuits.

The switch arrangement 6 is in this embodiment of a first switch 17 formed in the form of a reed contact, located within the housing 19 the manual operation 1 is located as in 4 is shown. Its operation is carried out by arranging a transmission element 24 in a first position above the first switch 17 , where the first switch 17 is turned on, and by arranging the transmission element 24 in a second position from the first switch 17 removed, so this is off.

The transmission element 24 is in this embodiment a permanent magnet, in an adjustable actuator 20 placed outside of its center on the periphery and with this adjustable on the housing 19 the manual operation 1 , preferably on the back, is arranged. This actuator 20 is rotatable in a preferred embodiment on a on the housing 19 the manual operation 1 formed receiving element 23 stored, it by a fastener 22 secured against loosening.

The receiving element 23 has an undercut circumferential outer edge below a conical upper portion, which leads to an undercut inner edge of a recess in the actuating element 20 corresponds. The actuator 20 is on the receiving element 23 clipped and formed rotatable about this. The fastener 22 is in section T-shaped and rotationally symmetrical, wherein a disc-shaped upper portion has an outer diameter which is greater than the diameter of the inner peripheral edge of the recess in the actuating element 20 , The actuator is provided with a concentric to its upper disc cylindrical elongated portion, which in a central recess in the receiving element 23 is introduced and is firmly inserted in this.

The actuator 23 is preferably conical and has recesses 21 for inserting an operating tool, with which it in the above-described various switching positions for actuating the first switch 17 can be adjusted.

The actuator 20 is with the surface of the housing 19 the manual operation 1 preferably formed latched, so that the switching positions can be adjusted again and again correctly, preferably with corresponding markings for these positions on the housing 19 and on the actuator 20 are arranged.

The second switch 18 may also be a reed contact, which is designed to be operable from the outside in the same way or with an attachable magnetic key.

The Invention is not on the embodiment described above limited.

So it is conceivable that the actuating element 20 slidably arranged.

Furthermore, it is conceivable that the actuation of the switch arrangement 6 is formed by means of a ringable magnetic key, wherein the magnetic key with the outer contour as the side wall of the hand control 1 is trained. There are also colored keys to distinguish possible. In this case, the key, for example, to the cable or to the housing 19 the manual operation 1 be clipped.

The operation of the switch assembly 6 Alternatively, it can be done with a socket or the like. Also, a smart card or a mechanical alternative is conceivable.

A transmission of blocking or release signals can also by means of a wireless transmission link for example about infrared transmission or inductively.

A Use of keyboard shortcuts and / or a permanent magnet in two-handed operation to lock and unlock is already known and This can also be done here.

The holder 7 can with a transmission element 24 be equipped, it is attachable and colored to distinguish.

The holder can 7 have a kind of flange. This flange is used to attach the holding device 7 on the housing 19 the manual operation 1 , Detachable and non-detachable connections by means of screws, gluing or locking rails are known. In this case, however, the flange may be designed such that in or on it an actuating element 20 with a certain number of transmission elements 24 is arranged. Both the actuation and the positioning of the actuator 20 can be done as already described.

It is also conceivable that the transmission element 24 is designed as a aufklipsbarer in different positions magnet.

There are still more than two switches 17 . 18 associated with multiple positions of the actuator 20 possible.

The switches 17 . 18 can also be actuated for example by an actuator, which via a membrane in the housing wall with the actuator 20 is coupled. This can be an actuator and an electromechanical switch 17 . 18 be mechanically formed in an advantageous manner.

The in the 5 to 9 illustrated manual operation 1 is with actuators in the form of push buttons 25 equipped. Im Darge presented embodiment are eight pushbuttons 25 intended. The 5 shows that on the operating side of the handset 1 three bulbs 26 are installed behind openings or that the handset is covered with a transparent cover foil. As a result, the lock state of the manual operating device 1 or the operating status is displayed. In addition, a defect can also be displayed. Also in this version is in the back of the handset 1 a bracket 7 used. In addition, at the bottom, the connecting link 8th assigned page an actuator 27 set in more detail explained manner to set the respective switching state.

The 6 shows that the bracket 7 on a flange 28 is molded into a pocket of the rear wall of the housing of the hand control 1 is used positively and non-positively, as still using the 8th and 9 is explained. The flange 28 is provided with a bore, so that an arrow-shaped, asymmetrical opening 29 an actuator explained in more detail can be achieved. In this opening 29 becomes an approach 30 of the actuator 27 closing introduced. Due to the asymmetrical design, it can only be used in a predetermined position. The 6 shows that three switch positions can be set, namely the middle blocking position, in which all functions are locked. If the tip of the arrow points to the left as shown, all functions are selectable, while when rotated through 180 °, only certain functions are accessible to a patient.

The 7 shows that the approach 30 of the actuator 27 in the opening 29 is plugged in, so that now the explained in more detail actuator 31 can be twisted.

The 8th and 9 show that the actuator as a switching disc 31 is trained. This switching disc 31 is according to the 9 in a cup-shaped recess whose bottom is provided with a bore, closing, but used rotatable. The figures show that the approach 30 of the actuator 27 can be passed through the hole to get into the opening 29 insert. The switching disc 31 is on the outer peripheral surface with a locking cam 33 provided according to the 9 in the switching position determining locking grooves 38 intervenes. In addition, according to the 9 the switching disc 31 with a recess 36 provided, in which a transmission element in the form of a permanent magnet 35 closing is used. That of the permanent magnet 35 built-up magnetic field acts through the plastic wall on the switching elements or reed contacts, not shown. The arrangement is such that in the switching position, the switching element or the reed contact is activated.

As the 9 shows, protrudes into the cup-shaped recess of the flange 28 a cone 40 into it, the rotational movement of the indexing disk 31 limited. For this purpose, the indexing disk is concentric with the axis of rotation of the indexing disk 31 running slot 32 provided, in which the pin 40 protrudes in the mounted position. The slot 32 extends for example over an angle of about 200 °.

As the 8th and 9 show is the switching disc 31 in the area of the locking cam 33 with a slot 34 provided so that the locking cam 33 can spring. In the switching position thereby the position of the switching disc 31 through the locking grooves 38 secured. After overcoming a certain force when turning the indexing disk 31 becomes the locking cam 33 pushed inwards, so that by the built-up restoring forces when reaching a locking groove 38 leaps outwards.

As the figures show, the actuator is 27 at the approach 30 opposite region formed like a clip, so that he according to the 5 at an approach of the housing 19 can be determined. From the 8th it turns out that the flange 28 the holder 7 in a pocket of the housing of the hand control 1 can be used. To secure are on the two long sides of the flange 38 locking lugs 37 formed. In the inserted position engage behind these corresponding projections on the mating surfaces to the longitudinal sides of the flange 28 , The locking lugs 37 are resilient, as parallel and at a relatively short distance to the longitudinal sides of the flange 28 slots 39 are provided. As a result, when inserting the flange 28 in the pocket every catch 37 spring inwards, so that by the built-up restoring forces they jump outwards again as soon as the projections are engaged behind.

1

manual operation

2

selection keys

3

direction key On

4

direction key From

5

function keys

6

switch arrangement

7

bracket

8th

link

9

drive motor

10

control device

11

power supply

12

energy storage

13

control block

14

switching element

15

display element

16

Power switching element

17

first switch

18

second switch

19

casing

20

actuator

21

recess

22

fastener

23

receiving element

24

transmission element

25

pushbutton

26

Lamp

27

actuator

28

flange

29

opening

30

approach

31

switching disk

32

slot

33

locking cams

34

slot

35

permanent magnet

36

recess

37

locking lugs

38

locking grooves

39

slot

40

spigot

a1 ... 4

output terminals

e1 ... 3

input terminals

s1 ... 2

control connection

v1 ... 3

supply connections

Claims (22)

Manual operation for adjusting drives, in particular for an electromotive adjustment drive device for adjusting parts of furniture in the care, home and / or hospital area, which has at least one drive motor and a control device, wherein the manual control ( 1 ) Operation buttons ( 2 . 3 . 4 . 5 ) for actuating a selected furniture part in a desired adjustment direction and a switch arrangement ( 6 ) for blocking certain operating functions, and the switch arrangement ( 6 ) at least one first switch ( 17 ), which by an adjustable, in an actuator ( 20 ) arranged transmission element ( 24 ) is actuated, characterized in that the actuating element ( 20 ) on the handset ( 1 ) adjustable and opposite the first switch ( 17 ) is adjustable to turn it on and off in different positions. Manual control according to claim 1, characterized in that the actuating element ( 20 ) Has recesses for actuation with a tool. Manual control according to claim 1 or 2, characterized in that the actuating element ( 20 ) on a housing arranged on the hand control receiving element ( 23 ) is rotatably mounted. Hand control according to claim 3, characterized in that the receiving element ( 23 ) an upper portion with a between the top of the receiving element ( 23 ) and the surface of the manual control ( 1 ) arranged peripheral edge with undercuts, which corresponds to a peripheral edge with undercuts, which in a recess on the surface to the hand control ( 1 ) facing side of the actuator ( 20 ) is introduced, wherein the actuating element ( 20 ) by a in the receiving element ( 23 ) fastenable fastener ( 22 ) is secured against loosening. Hand control according to one of claims 1 to 4, characterized in that the switch arrangement ( 6 ) has at least one switching element which is formed by a magnetic field actuated. Hand control according to claim 5, characterized in that the at least one switch has a reed contact and the transmission element ( 24 ) is a permanent magnet. Hand control according to one or more of claims 1 to 6, characterized in that the shape of the actuating element ( 20 ) with a shape of the housing ( 19 ) of the manual control ( 1 ) corresponds such that only in cooperation of these shapes a switch ( 17 . 18 ) is pressed. Manual control according to one or more of claims 1 to 7, characterized in that the transmission element ( 24 ) has mechanical, magnetic, optical and / or inductive transmission mechanisms. Manual operation according to claim 8, characterized in that the transmission element ( 24 ) outputs a coded or normalized signal in waveform or pulse shape. Hand control according to one or more of claims 1 to 9, characterized in that the holder ( 7 ) has a flange which on or in the housing ( 19 ) of the manual control ( 1 ) is fixed or detachable on or attachable. Hand control according to claim 10, characterized in that the flange is a receiving element ( 23 ) or a recess, which the actuating element ( 20 ) and that the actuating element ( 20 ) is rotatable. Manual control according to claim 1, characterized in that the actuating element as a switching disc ( 31 ) formed with an externally accessible opening ( 29 ) into which an approach ( 30 ) of an actuator ( 27 ) can be inserted in a form-fitting and closing manner. Hand control according to claim 12, characterized in that the opening ( 29 ) is designed asymmetrically. Handset according to claim 12, characterized in that the approach ( 30 ) opposite area of the actuator ( 27 ) is designed in such a clamp-like manner that the actuator ( 27 ) positively and / or non-positively on a projection of the housing of the manual control ( 1 ) is determinable. Manual control according to claim 10 and 12, characterized in that the switching disc ( 31 ) in a cup-shaped recess of the flange ( 28 ) of the holder ( 7 ) is rotatably mounted. Hand control according to claim 12, characterized in that the indexing disk ( 31 ) a recess ( 36 ) into which a permanent magnet ( 35 ) is used as a transmission element. Hand control according to claim 12, characterized in that the indexing disk ( 31 ) a slot extending concentrically to its axis of rotation ( 32 ), in which a in the cup-shaped recess of the flange ( 28 ) molded or attached stop pin ( 40 ) intervenes. Manual control according to claim 12, characterized in that on the outer lateral surface of the indexing disk ( 31 ) a locking cam ( 33 ) is formed, and that in the opposite surface of the cup-shaped recess of the flange ( 28 ) are provided corresponding to the number of switching elements corresponding number of positionally correct to the switching elements arranged recesses. Hand control according to claim 18, characterized in that the locking cam ( 33 ) is formed on a spring bar, which by a concentric to the axis of rotation of the indexing disk ( 31 ) extending slot ( 34 ) is formed. Hand control according to one or more of the preceding claims 12 to 19, characterized in that the flange ( 28 ) of the holder ( 7 ) into a pocket of the handset housing ( 1 ) is fixed positively and / or non-positively. Manual control according to claim 20, characterized in that the flange ( 28 ) of the holder ( 7 ) on the guide surfaces of the bag side facing each with a latching nose ( 37 ) is provided, which are integrally formed on spring bars and engage behind in the inserted position correct position and correspondingly shaped projections. Hand control according to claim 21, characterized in that the spring webs by parallel and at a distance from the longitudinal edges of the flange ( 28 ) of the holder ( 7 ) running slots ( 39 ) are formed.