DE10314156B9 - Swivel bracket assembly and method for controlling such - Google Patents

Abstract

Swivel bracket assembly comprising:
A pivot base (3; 3a);
A swivel arm (5, 5a) pivotably connected to the swivel base (3, 3a) about a horizontal axis (7, 7a);
- a first force device (31; 31a) for providing a holding force between a first and a second action end (32,33; 32a, 33a) thereof, the first action end (33; 33a) on the pivot arm (5; first articulation point (45) which is arranged at a first distance from the horizontal axis (7; 7a) and engages the second action end (32; 32a) on the pivoting base (3; 3a) at a second articulation point (43; 43a), which is located at a second distance from the first articulation point (45), seen in projection on a vertical (z); and
A displacement mechanism (37, 39, 37a, 39a) for displacing the second articulation location (43, 43a) on the pivoting base (3, 3a) in the direction of the vertical (z)
marked by
- one by one user ...

Description

The The invention relates to a swivel mounting arrangement according to the preamble of claim 1 or claim 3 and a method for Controlling such. The swivel mount arrangement is particular used in tripods to hold a load, such as Lamps, monitors or other equipment, in particular surgical microscopes, which height adjustable are to be provided.

State of technology

The conventional Swivel bracket assembly includes a pivot base and a pivot base about a horizontal axis pivotally hinged arm, to which the load attachable is. The burden is over the Swivel arm on the pivot axis a torque off. The swivel bracket assembly provides a load corresponding counter torque ready, so that finally in Ideal case on the swing arm no effective torque acts, so that this remains in a position set by a user. in this connection should be a change the pivotal position of the pivot arm relative to the pivot base easy and overcoming be possible only by low frictional forces.

At one off US 6,070,839 A Known pivot mounting arrangement, such a counter torque is applied by a power device, which acts on the pivoting base on the one hand and on the other hand on the pivot arm at a distance from the horizontal axis, wherein the corresponding pivot point is displaceable on the pivot base by means of a manually operated spindle in the vertical direction.

By Actuate The spindle is then possible, for example, the counter torque to increase, when a weight of the load attached to the swing arm increased Has.

Out US 6,528,796 82 a swivel mounting arrangement with a power device is known, which is supported on the one hand on a pivot arm and on the other hand on a pivot base.

These known pivot bracket assembly has the disadvantage that one of the strength device provided counter torque not in every pivot position of the Swivel arm is suitable, even with the same load that of the burden exercised Torque substantially completely compensate.

Corresponding is that of the strength device generated counter torque position-dependent, and it must either the friction force, which pivoting of the pivot arm at low Torque prevents unwanted elevated be, or it must be Users in each pivot position by a perceived too expensive adjustment process one possible make good compensation of the torques. Complicating this, that he his experience of compensating for a given load The torque then can not bring optimal, if changed the weight of the load has, as then significantly different Anlenkorte for the power unit on the Pivoting base are set.

It It is an object of the present invention to provide a swivel mount assembly with a pivot base and a hinged on the pivot base To propose swivel arm, wherein the swivel mounting arrangement in is capable of deviation from the equilibrium state of the swing arm this automatically bring it back into equilibrium.

It In particular, it is an object of the present invention to provide a swivel mount assembly with a pivot base and a hinged on the pivot base To propose a swivel arm that makes it easy to a compensation of the loads exerted by the load substantially independently to reach from the pivot position of the swing arm.

Further In particular, it is an object of the invention to provide a swivel mount assembly to propose, at which a change the pivotal position of the pivot arm relative to the pivot base possible is without one User with hand on the swivel arm and / or the load one increased Exercise pivoting force got to.

Further It is an object of the invention, a corresponding method propose.

The solution the o. g. Task with respect to the swivel mounting arrangement, takes place by the features of the claims 1 and 3.

The Proceeding solution of the Task is achieved by the features of claim 19.

The invention is based on a swivel mounting arrangement comprising: a swivel base; a pivotally hinged to the pivot base about a horizontal axis pivoting arm; a first force device for providing a holding force between a first and a second operative end thereof, wherein the first action end engages the pivot arm at a first articulation location, which is arranged at a first distance from the horizontal axis, and second action end engages the pivoting base at a second articulation location located at a second distance from the first articulation location as projected to a vertical, and a displacement mechanism for displacing the second articulation location at the pivotal base in the vertical direction.

Under In a first aspect, the invention is characterized in that the swivel mounting arrangement having a motion request sensor which is operable by the user. The motion request sensor may be, for example, a mechanical switch the user presses to his desire to move, that is a pivoting of the swivel arm up or down, a Control system of Schwenkhalterungsanordnung communicate. It is but also possible, from this completely provide various motion request sensors, such as a footswitch or a voice analysis system, to which the user requests his movement can communicate through spoken commands.

Of the Motion request sensor, however, can also be a weighing device comprise, which between the load to be carried by the pivot arm and the pivot arm is arranged. This allows the user from above press on the load, what intuitively corresponds to the active pivoting of the arm down, and thus a motion request for pivoting the pivot arm down expresses. Lifting the load is a correspondingly reverse motion request for initiating a pivoting of the swivel arm upwards.

The Control system then controls a drive to relocate the Anlenkortes with which the strength device articulated to compensate for the torque on the pivot base is. this leads to first to a change that of the strength device provided counter torque, so that by the load and also the dead weight of the swivel arm no longer generated torque essentially complete is compensated. This is followed by a pivoting of the swivel arm on, whereby the movement request of the user is implemented.

The In fact, inventors have realized that the shift the pivot point at the pivot base is a means to make a change bring about the pivoting position of the swing arm, so that this is not about a separate Swivel arm drive is necessary.

Under A second aspect of the invention is provided according to claim 3, in that the swivel mount arrangement comprises a motion sensor, which is a change the pivotal position of the pivoting arm relative to the pivoting base can register.

One Control system is responsive to an output from the motion sensor Motion signal and then controls a drive for the displacement of the Location of the power unit on the pivoting base such that the pivoting movement of the pivoting arm is reduced. This makes it possible, a substantially full Compensating the torque acting on the pivot arm for the user quick and easy to reach, regardless of which pivot position the swing arm is straight relative to the pivot base, and also independently of a size of the load, which is attached to the pivot arm.

Further advantageous embodiments of the objects according to claim 1 or claim 3 result from the features of claims 2 and 4 to 18.

According to one preferred embodiment accordingly Claim 4, a further power device is provided, which can be controlled is to that of the between the swivel base and the swivel arm articulated strength device to change the holding force provided. Thus, this first power device, a "passive" power device, such as a spring arrangement or a counterweight or the like Its power is dependent on one of the control system supplemented by sensor signals second power device is added.

Under Another aspect of the invention is according to claim 19 a method is provided for controlling the swivel mount assembly, this exerts two different modes of operation

One first mode of operation is then exercised when a motion is desired the user has been registered or registered, in which case the displacement mechanism the pivot bracket assembly is actuated such that the desired movement of the swivel arm brought about becomes.

In a second operating mode which is executed when a motion request of the User is not present or registered, becomes the second power unit controlled such that the Swivel arm in a momentary Schwenkpo position essentially remains, and then it becomes the drive to shift the Anlenkpunkts of the first. power unit at the swivel base controlled such that one of the second power device for this purpose to be provided holding force a setpoint of zero in particular occupies.

Further advantageous embodiments of the method according to claim 19 result arising from the features of the claims 20 to 22.

The second strength device comprises according to claim 1, preferably a motor, such as a Linear motor and / or a rotary drive.

According to one preferred embodiment accordingly Claim 10 and 12 is provided that the articulation of the first power unit is provided on the pivot arm by a roller which is rotatable is mounted on the pivot arm. There is a rope on the reel, one end, if any, of intermediate mechanical components set at the articulation of the first power device on the pivot base is, and its other end, possibly via interposition of further mechanical components, with a spring assembly, gas spring or the like for generating the one provided by the first power tool Holding force is coupled. The role and the rope are components of the first power device.

The At the same time, role is also a component of the second Power device and that of the second strength device in addition to the first strength device to be provided force is according to claim 11 preferably above a Rotary drive of the second power unit transferred to the role and thus to the hinged on the pivot base rope.

Further is according to claim 13, the motion sensor or the motion desire sensor preferably executed as a coupled with the role of rotation sensor, the registered a rotation of the roller relative to the pivot arm. A such rotation occurs at a pivoting of the pivot arm around the horizontal axis, so that thereby a particularly simple realization of the motion sensor or the motion request sensor is realized.

Of the Motion sensor can according to claim 15 as one of Swivel arm supported load weighing device may be formed, which is the Determined weight of the mounted on the swing arm load, in which case the second strength device is controlled such that the Pivot arm substantially remains in a current pivot position, and then it becomes the drive to shift the Anlenkpunkts of the first power device at the swivel base controlled such that one of the second power device for this purpose to be provided holding force a setpoint of zero in particular occupies.

A preferred application of the swivel mounting arrangement is corresponding Claim 18 in the field of stands for microscopy systems, in particular the field of tripods for Stereo surgical microscopes.

embodiment

preferred embodiments The invention will be explained in more detail with reference to drawings. in this connection shows:

1 a pivot bracket assembly according to a first embodiment of the invention in a schematic side view;

2 a detailed view of the swivel mounting arrangement of 1 ;

3 a schematic representation of a control system of Sehwenkhalterungsanordnung the 1 ; and

4 a further embodiment of a swivel mounting arrangement according to the invention.

An in 1 schematically illustrated pivot bracket assembly 1 includes a swivel base 3 on which a swivel arm 5 around a horizontal axis 7 with its one end 9 is articulated. At another end 11 of the swivel arm 5 is about an intermediate link 13 a very schematically illustrated surgical microscope 15 with a lens 17 a microscope housing 19 and a set of eyepieces 21 attached as a load M. By changing a pivot position of the swivel arm 5 with regard to the swivel base 3 is it possible to use the microscope 15 to shift in a Z direction.

Here, the swivel base 3 For example, be a pedestal of a set up on a floor of an operating room tripod. However, it is also possible that the swivel base 3 is connected via other links of such a tripod with the tripod base, so that the pivot base 3 is spatially displaceable relative to the pedestal.

Furthermore, it is also envisaged that the microscope 15 not directly on the intermediate link 13 is appropriate. Rather, between the intermediate member 13 and the microscope 15 further tripod members may be provided to the microscope relative to the intermediate member 3 to keep relocatable, as for example in US 6,105,909 A is described, the disclosure of which is incorporated in the present application by reference in its entirety.

The intermediate link 13 is with the swivel arm 5 over a swivel joint 23 also pivotally coupled to the horizontal, and an auxiliary arm 25 extends into each inclination of the swing arm 5 parallel to this, putting it on the swivel base 3 around a horizontal axis 27 and on the intermediate member 13 around a horizontal axis 29 is hinged pivotally.

Due to the mass of the swivel arm 5 and related components, such as the auxiliary arm 25 , the intermediate link 13 and the microscope 15 , what a 1 in the direction of an arrow L are pivotal acts on the swivel arm 5 with respect to the axis 7 a torque which tries to swing the arm 5 with respect to the axis 7 to turn clockwise.

To the swivel arm 5 To keep in balance or to put the swivel mounting arrangement in a balanced state is a first power tool 31 provided, one of whose effect 32 at the swivel base 3 is articulated, and its other effect 33 on the swivel arm 5 is articulated. This includes the first power device 31 a rope 35 , which at the end of action 32 of the power unit 31 to a joint piece 37 coupled, which via one of the joint piece 37 supported nut in a Z-direction extending threaded spindle 39 engages which by a rotary drive motor 41 is driven. This can be achieved by operating the motor 41 a junction 43 at which the first strength device 31 with his operative 32 on the swivel bracket assembly 3 hinged, relocate in Z direction.

At the other end of the action 33 of the power unit 31 lies the rope 35 at one on the pivot arm 5 stored roll 45 which of the rope 35 is at least partially entwined. The rope 35 extends from the role 45 continues and is at its end with one end of a tension spring 47 coupled, the other end via a bracket 49 firmly with the swivel arm 5 connected is.

The tension spring 47 is in the in 1 stretched arrangement shown and thus provides between its two ends a tensile force, which over the rope 35 around the role 45 is deflected and at the anchorage 43 on the swivel base 3 is transmitted. This puts the power device 31 between his two agents 32 and 33 a holding force ready, which a torque generated by the load M opposite to the torque with respect to the horizontal axis 7 such that the swivel mount assembly 1 balanced, that is, a pivotal position of the swing arm 5 with regard to the swivel base 3 does not change.

However, such a compensation of the torques occurs only when the articulation point 43 by the motorized operation of the spindle 39 was moved to a suitable position in the Z direction. Like the swivel bracket assembly 1 This position automatically finds and receives movement requests of a user will be explained below.

2 shows in a schematic sectional view taken along the line II-II of 1 a detail of the swivel bracket assembly 1 , Accordingly, on the swivel arm 5 a bracket 51 firmly attached to which one of a shaft 53 interspersed warehouse 55 is provided, the shaft 53 on the one hand, the role 45 carries and on the other hand to a to the holder 51 flanged geared rotary motor 57 is coupled. By excitement of the engine 57 It is thus possible to have a torque on the roll 45 exercise, which is a force on the rope 35 which leads through the tension spring 47 provided force of the power device 31 added.

Thus, the combination of the role 45 and the engine 57 as a second strength device 58 which provides a supplementary force, that provided by the first strength device 31 generated force is superimposed.

To the geared rotary motor 57 is at the holder 51 turned away and also from the shaft 53 enforced end of a rotary encoder or rotary position sensor 59 flanged to a change in the rotational position of the roller 45 with respect to the swivel arm 5 to register.

Out 1 it can be seen that a change in the pivoting position of the swivel arm 5 with regard to the swivel base 3 to an expansion or contraction of the spring 47 leads, which in turn causes a movement of the rope 35 relative to the bracket 51 entails the role 45 relative to the pivot arm 5 is set in rotation. This is one of the rotation sensor 59 generated signal representative of a movement or pivoting of the pivot arm 5 or for the fact that its pivot position does not change and the swivel mounting assembly is in its balanced state.

A tax system 61 for the swivel bracket assembly 1 is in 3 shown schematically. The tax system 61 serves to control the motor 57 for applying a torque to the roll 45 and for controlling the motor 41 for relocation of the anchorage 43 of the first power device 31 at the swivel base 3 , The tax system 61 works in two operating modes.

In a first mode of operation, it is an object of the control system 61 the motors 41 and 57 to control such that the swivel arm 5 remains in a current position. A control processor reads this 63 one from the rotation sensor 59 be risen signal and controls in response to this signal, a power source 65 on, through which the engine 57 is fed. The control processor tries to do this 63 the current I for the engine 57 to adjust so that a rotational position of the engine 57 and thus a rotational position of the role 45 essentially does not change.

For example, the load M is changed by, for example, the microscope 15 an additional component, such as a camera is mounted, so will the engine 57 opposite the power source 65 excited to torque on the role 45 to transfer that of the first power device 31 provided force increases.

The tax system 61 is thus able to react quickly to changes in the load M and to compensate for the torque generated by such load changes quickly, so that the microscope 15 essentially persisted in its current position.

However, it is desirable the engine 57 not long-lasting with large currents I for balancing the swivel mounting arrangement 1 to dine. Therefore, the control system includes 61 another control processor 67 , which is a power source 69 controls, and that for feeding the motor 41 for relocation of the anchorage 43 of the first power device 31 at the swivel base 3 in the Z direction.

The control processor 67 read one of the power source 65 of the motor 57 provided signal, which represents the strength and optionally also the polarity of the current I, with which the current source 65 the engine 57 fed. The control processor 67 then controls the power source 69 for the engine 41 such that the from the power source 65 provided power is minimized.

That is, if, for example, the weight of the microscope 15 previously increased, the engine is 41 operated in such a direction of rotation that the articulation 43 is moved upward, so that by the first power device 31 alone provided counter torque increased. Accordingly, the control processor becomes 63 the power source 65 to reduce the excitation of the engine 57 can drive to the swivel arm 5 to remain in his position. Accordingly, the excitement of the engine 57 that is, the one from the power source 65 provided current provides an appropriate control variable, depending on which the control processor 67 the engine 41 controls.

However, it is also possible that the processor 67 this control also from the control processor 63 gets directly provided.

The components rotary sensor 59 , Control processor 63 and power source 65 are as a module 71 summarized, which in the immediate vicinity of the engine 57 is arranged and also in 2 is shown symbolically.

The control processor 67 and the power source 69 can with a spatial distance from the module 71 be arranged for example in a computer or the like. However, it is also possible to use all components of the control system 61 to merge into one module or distribute it to three or more modules.

In the first mode of operation, the control system operates 61 thus as an electronic "brake" for pivoting movements of the swing arm 5 , The effect of the tax system 61 in the first mode of operation is thus such that the swivel mount assembly is "rigid" in a sense. This is also in case of accidental contact with the microscope or a component of the swivel mounting arrangement 1 ensures that the microscope 15 not unintentionally lowered to, for example, a patient just examined. This allows the control system 61 make a provision of a magnetic brake as a safety device redundant.

In the second operating mode, the control system switches 61 then um, if a motion request switch 73 is pressed. This is on the intermediate link 13 the swivel bracket assembly 1 near the microscope 15 attached and is then operated by the user, if this is a change in the pivot position of the swing arm 5 with regard to the swivel base 3 wishes. For this purpose, the user actuates a lever 75 of the switch 73 up to a contact 76 to close what is from the control processor 67 is registered, so that it switches from the first operating mode in the second operating mode and therein via the power source 69 the engine 41 controls such that the Anlenkart 43 in the Z direction is shifted upward. This increases the power of the first 31 provided force, which leads to an increase of the counter torque to the swivel arm 5 with respect to the horizontal axis 7 to turn counterclockwise and thus the microscope 15 to lift in Z direction. Has the microscope 15 reaches the desired height, so the user leaves the lever 75 go back to its neutral position, what the controller 67 in turn registered and the tax system 61 returns to the first operating mode.

Switching to the second operating mode tells the control processor 67 the control processor 63 with, so that this the control of the engine 57 with a view to keeping the pivot constant position of the swivel arm 5 omits, so that a pivoting of the pivot arm 5 only becomes possible. Conversely, the control processor shares 67 a transition from the second mode of operation to the first mode of operation also to the control processor 63 with, whereupon this again the control of the power source 65 in the manner described above, to the pivotal position of the pivot arm 5 maintain.

If the user wishes to lower the microscope 15 so he becomes the lever 75 move down to a contact 77 to close what is from the control processor 67 is also registered. This then also goes into the second operating mode and controls the engine 41 to the place of articulation 43 of the first power tool on the pivot base 3 Swing in the Z direction, resulting in a reduction of the power unit 31 generated counter torque and thus to a lowering of the microscope 15 leads.

Hereinafter, variants of referring to the 1 to 3 described embodiments described. In it are components that in the 1 to 3 explained components with regard to their structure and / or their function correspond, with the same reference numerals, but to distinguish them with an additional letter.

An in 4 schematically illustrated pivot bracket assembly 1a has a similar structure as that in the 1 to 3 illustrated pivot bracket assembly 1 , The latter provides a counter-torque by a power device providing the cable loaded on train 35 includes, so that the articulation 43 of the power unit 31 on the part of the swivel base 3 is arranged higher than the articulation point 33 of the power unit 31 on the side of the swivel arm 5 ,

A first strength device 31a the swivel bracket assembly 1a includes a pressure loaded rod 81 , which with one end at a junction 43a of the power unit 31a on the part of the swivel base 3a hinged, and the other end with a compression spring 47a is coupled, which at a point of articulation 33a of the power unit 31a on the side of the swivel arm 5a supported.

The strength device 31a thus generates a compressive force, which is therefore transferred into the counter torque counter to the load M, because the articulation point 43a Support site of the power device 31a on the swivel arm 5a is.

As second strength device 58a which is that of the first strength device 31a provided force is added to the swivel bracket assembly 1a a linear motor 83 provided, whose housing 84 with a housing 85 the compression spring 47a firmly connected, and which on a pole 87 which are in the linear motor 83 parallel to the pole 81 of the first power device 31a extends and which with the rod 81 firmly connected, a force in the direction of the rod 87 with appropriate control exercises

The swivel bracket assembly 1a has a control system, which has a similar structure as that based on the 3 explained tax system. This is the engine 41a for the displacement of the articulation point 43a in the Z direction with a view to minimizing the excitation of the linear motor 83 driven.

At the intermediate link 13a is a trained as a motion sensor load weighing device 91 attached, which is the weight of the swivel arm 5a attached load M is determined, in which case the second strength device 58a is controlled such that the swivel arm 5a essentially remains in a current pivot position, and then where the drive for displacement of the pivot point 43a of the first power device 31a at the swivel base 3a is controlled such that the second power device 58a provided holding force assumes a target value of zero, whereby the pivotal position of the pivot arm 5a is maintained.

However, it is also conceivable, the linear motor 83 (instead of the load weighing device 91 ) form as a motion sensor.

In the embodiments described above, the motion request sensor is the switch 75 realized. However, it is also possible that the control system, when it is in the second mode of operation, the motion sensor 59 or the linear motor 83 used as motion request sensor. The user can then hand to the arm 5 or to the load 15 grab to relocate them. The switching from the first to the second operating mode can then be done otherwise, for example via a footswitch.

Further Is it possible, to design the control system with only one mode of operation, which then one of the two operating modes described above. Then the control system only works to a specific one Maintain pivotal position of the arm or merely to to change the pivoting position of the swivel arm.

The latter is particularly sufficient if the geometry of the Schwenkhalterungs arrangement is selected such that the counter torque provided by the first power device in each pivot position is substantially equal, and the pivot arm is thus substantially balanced in each pivot position.

In the basis of the 1 described embodiment, the first power device comprises a tension spring 47 , However, this can also be carried out with suitable deflection of the force as a compression spring readily.

Likewise, in the embodiment of the 4 provided compression spring 47a be implemented with a suitable deflection as a tension spring.

You can also use the rope loaded with the train 35 based embodiment of the 1 a linear motor or another drive may be provided as a second power device.

In summary is a pivot bracket assembly with a swivel base and proposed a swivel arm pivotally hinged to the pivot base, wherein a first power device is provided to generate a counter torque such that the pivot arm staying in one position. This is further a force of the first power unit supplemented by a controllable second strength device.

Claims (22)

Swivel mount assembly comprising: a swivel base ( 3 ; 3a ); - one at the swivel base ( 3 ; 3a ) about a horizontal axis ( 7 ; 7a ) pivotable hinged arm ( 5 ; 5a ); - a first strength device ( 31 ; 31a ) for providing a holding force between a first and a second operative end ( 32 . 33 ; 32a . 33a ), the first operative end ( 33 ; 33a ) on the swivel arm ( 5 ; 5a ) at a first anchor point ( 45 ), which is at a first distance from the horizontal axis ( 7 ; 7a ) and the second operative end ( 32 ; 32a ) at the swivel base ( 3 ; 3a ) at a second articulation point ( 43 ; 43a ), which of the first articulation point ( 45 ), viewed in projection on a vertical (z), is arranged at a second distance; and - a relocation mechanism ( 37 . 39 ; 37a . 39a ) for relocating the second anchorage location ( 43 ; 43a ) at the swivel base ( 3 ; 3a ) in the direction of the vertical (z), characterized by - a user-actuable motion-desired sensor ( 73 ; 73a ) for outputting a motion request signal; and a control system ( 61 ) for controlling a with the displacement mechanism ( 37 . 39 ; 37a . 39a ) coupled displacement drive ( 41 ; 41a ) as a function of the motion request signal, in order by the displacement of the second anchor point ( 43 ; 43a ) a pivoting movement of the pivoting arm ( 5 ; 5a ) relative to the pivot base. A swivel mount assembly according to claim 1, comprising: - a motion sensor ( 59 ; 83 ) for outputting a pivoting movement of the pivoting arm ( 5 ; 5a ) relative to the swivel base ( 3 ; 3a ) representing motion signal; and a control system ( 61 ) for controlling a with the displacement mechanism ( 37 . 39 ; 37a . 39a ) coupled displacement drive ( 41 ; 41a ) in response to the motion signal to, when the motion request sensor ( 73 ; 73a ) is not actuated, by the displacement of the second anchor point ( 43 ; 43a ) the pivoting movement of the swivel arm ( 5 ; 5a ) relative to the swivel base ( 3 ; 3a ) to reduce. Swivel mount assembly comprising: a swivel base ( 3 ; 3a ); - one at the swivel base ( 3 ; 3a ) about a horizontal axis ( 7 ; 7a ) pivotable hinged arm ( 5 ; 5a ); - a first strength device ( 31 ; 31a ) for providing a holding force between a first and a second operative end ( 32 . 33 ; 32a . 33a ), the first operative end ( 33 ; 33a ) on the swivel arm ( 5 ; 5a ) at a first anchor point ( 45 ), which is at a first distance from the horizontal axis ( 7 ; 7a ), and the second operative end ( 32 ; 32a ) at the swivel base ( 3 ; 3a ) at a second articulation point ( 43 ; 43a ), which of the first articulation point ( 45 ), viewed in projection on a vertical (z), is arranged at a second distance; and - a relocation mechanism ( 37 . 39 ; 37a . 39a ) for relocating the second anchorage location ( 43 ; 43a ) at the swivel base ( 3 ; 3a ) in the direction of the verticals (z); characterized by - a motion sensor ( 59 ; 83 ) for outputting a pivoting movement of the pivoting arm ( 5 ; 5a ) relative to the swivel base ( 3 ; 3a ) representing motion signal; and a control system ( 61 ) for controlling a with the displacement mechanism ( 37 . 39 ; 37a . 39a ) coupled displacement drive ( 41 ; 41a ) in response to the motion signal to be detected by the displacement of the second anchor point ( 43 ; 43a ) the pivoting movement of the swivel arm ( 5 ; 5a ) relative to the swivel base ( 3 ; 3a ) to reduce. Swivel mounting arrangement according to one of claims 1 to 3, wherein a controllable two tes strength device ( 58 ; 58a ) is provided around that of the first power device ( 31 ; 31a ) between its first and second effect ( 32 . 33 ; 32a . 33a ) to change the holding force provided. Swivel mounting arrangement according to claim 4, wherein the control system ( 61 ) the second strength device ( 58 ; 58a ) in response to the movement signal or the motion request signal. Swivel mounting arrangement according to claim 4 or 5, wherein, when the second power device is actuated ( 58 ; 58a ) depending on the motion signal, the control system ( 61 ) an excitation of the second power device ( 58 ; 58a ) such that the motion signal represents a movement of substantially zero. Swivel mounting arrangement according to claim 6, wherein the control system ( 61 ) the displacement drive ( 41 ; 41a ) depending on the excitation of the second power device ( 58 ; 58a ). A swivel mount assembly according to claim 7, wherein the control system ( 61 ) the displacement drive ( 41 ; 41a ) such that the excitation of the second power device ( 58 ; 58a ) is minimized. A pivot mount assembly according to any one of claims 4 to 8, wherein the second power tool ( 58a ) a linear motor ( 83 ). Swivel mounting arrangement according to one of claims 4 to 9, wherein on the swivel arm ( 5 ) a role providing the first anchor point ( 45 ) is rotatably mounted and the first power device ( 31 ) and the second strength device ( 58 ) the role ( 45 ) as a common component and the first strength device ( 31 ) further on the roll ( 45 ) attached rope ( 35 ). A pivot mount assembly according to claim 10, wherein the second force device ( 58 ) a rotary drive ( 57 ) for driving the roller ( 45 ). A swivel mount assembly according to claim 10 or 11, wherein the first force device ( 31 ) one with the rope ( 35 ) and on the other hand with the swivel arm ( 5 ) coupled spring arrangement ( 47 ). A pivot mount assembly according to any one of claims 10 to 12, wherein the motion sensor or the motion request sensor comprises a rotation sensor (14) coupled to the roller (10). 59 ). A swivel mount assembly according to any one of claims 1 to 13, wherein the motion request sensor detects one of the swivel arm (14). 5 ; 5a ) worn switch ( 73 ; 73a ). A swivel mount assembly according to any one of claims 2 to 14, wherein the motion sensor detects one of the swivel arm (14). 5a ) carried load weighing device ( 91 ). Swivel mounting arrangement according to one of claims 1 to 15, wherein the second articulation point ( 43a ) is arranged below the first articulation location. Swivel mounting arrangement according to one of claims 1 to 15, wherein the second articulation point ( 43a ) is arranged above the first articulation location. Microscopy system with a swivel mounting arrangement according to one of claims 1 to 17 and one of the swivel arm ( 5 ; 5a ) microscope ( 15 ). A method of controlling a swivel mount assembly, in particular the swivel mount assembly of any one of claims 1 to 17, wherein the swivel mount assembly comprises: - a swivel base ( 3 ; 3a ); - one at the swivel base ( 3 ; 3a ) about a horizontal axis ( 7 ; 7a ) pivotable hinged arm ( 5 ; 5a ); - a first strength device ( 31 ; 31a ) for providing a holding force between a first and a second operative end ( 32 . 33 ; 32a . 33a ), the first operative end ( 33 ; 33a ) on the swivel arm ( 5 ; 5a ) at a first anchor point ( 45 ), which is at a first distance from the horizontal axis ( 7 ; 7a ), and the second operative end ( 32 ; 32a ) at the swivel base ( 3 ; 3a ) at a second articulation point ( 43 ; 43a ), which of the first articulation point ( 45 ), viewed in projection on a vertical (z), is arranged at a second distance; - a relocation mechanism ( 37 . 39 ; 37a . 39a ) for relocating the second anchorage location ( 43 ; 43a ) at the swivel base ( 3 ; 3a ) in the direction of the vertical (z); and wherein the method comprises: - detecting a motion request; and - if a motion request is detected, automatically actuating the displacement mechanism ( 37 . 39 ; 37a . 39a ) such that the desired movement of the swivel arm ( 5 ; 5a ) is brought about. The method of claim 19, further comprising: actuating the displacement mechanism ( 37 . 39 ; 37a . 39a ) such that the swivel arm ( 5 ; 5a ) substantially remains in a current pivot position. The method of claim 19 or 20, wherein the pivot support assembly further comprises a second force device ( 58 ; 58a ) in order to receive the information from the first 31 ; 31a ) between its first and second effect ( 32 . 33 ; 32a . 33a ) provided Holding force, and wherein the method comprises: if the motion is not desired, the second force device ( 58 ; 58a ) in such a way that the swivel arm ( 5 ; 5a ) substantially remains in its current pivot position, and to control the displacement drive such that one of the second force device ( 58 ; 58a ) to be provided holding force assumes a target value. The method of claim 21, wherein the set point is determined by the second force device ( 58 ; 58a ), which is substantially zero.