EP3020381B1 - Auxiliary device for a stretcher - Google Patents

Description

Technical area

1. a) eine Tragenaufnahme, welche die Fahrtrage mit eingeklapptem Fahrwerk aufnimmt,
2. b) eine Linearführung, entlang welcher die Tragenaufnahme zum Ausbringen oder zum Einbringen verschoben werden kann,
3. c) eine Stellvorrichtung für das Fahrwerk der Fahrtrage zum Einklappen des Fahrwerks beim Beladen auf die Tragenaufnahme bzw. ausklappen des Fahrwerks der Fahrtrage beim Entladen und
4. d) eine Schwenkvorrichtung mit Antriebsmitteln, welche die Linearführung mit der Tragenaufnahme um eine Achse schwenkt.

The invention relates to an auxiliary device for a stretcher trolley and a stretcher with a retractable landing gear, wherein the auxiliary device is provided for loading and unloading on or from a support platform of an emergency vehicle, comprising

1. a) a stretcher receiving the stretcher with folded chassis,
2. b) a linear guide, along which the stretcher can be moved for deployment or for insertion,
3. c) an actuator for the chassis of the stretcher for folding the chassis when loading on the stretcher support or unfold the chassis of the stretcher during unloading and
4. d) a pivoting device with drive means which pivots the linear guide with the stretcher support about an axis.

Furthermore, the invention relates to a method with such an auxiliary device for a stretcher with a retractable landing gear for loading and unloading on a support platform of an emergency vehicle.

State of the art

Rescue vehicles are used to transport injured or sick people. The rescue vehicles have a carrying platform on which a stretcher is parked with the sick or injured person and fixed for transport. A lifting device raises or lowers the ambulance table to a desired height. The lifting device is in the simplest case, a manual actuator that lifts the ambulance table.

Carrying platforms are known, which are raised or lowered with a hydraulic system or pneumatic system. In this case, the hydraulic motor or the pneumatic drive of the rescue vehicle is used. The support platform then often contains a carrying storage rack, which is hydraulically or pneumatically operated and lifts the stretcher. By lowering the carrying platform, it can be loaded and unloaded more easily with a stretcher.

The DE 20 2004 007 621 U1 describes a stretcher storage rack for storage of patient support in ambulance or multi-function vehicles with a stretcher. First means are provided for moving the stretcher up and down between at least one lowered transport position and a raised treatment position. There are further provided second means which move the stretcher support in the longitudinal direction of travel between a retracted treatment and transport position and an extended loading and unloading position. The first and second means are realized by a single, common motion system.

In the DE 203 12 525 U1 a device for the storage of carriers for the transport of patients in an ambulance or the like is described with a defined in the ambulance undercarriage. A carriage is slidably provided relative to the underframe between a transport position and a loading position. Furthermore, guide means for guiding the carriage along the underframe are provided between the undercarriage and the carriage. The base frame has round tubes which extend in the direction of displacement of the carriage. On the carriage guide rollers are provided whose peripheral contour is adapted to the peripheral contour of the round tubes.

The DE 102011078803 A1 describes a system for automatically pulling up a stretcher with foldable chassis on a stretcher platform in an ambulance. The system comprises a linear guide mountable on a carrying support platform, a drive and a traction device coupled to the drive, with which the drive carrier can be pulled up onto the carrier support platform by means of the drive (240) along the mounted linear guide. Further, a control device for driving the drive is provided and a switch for wireless transmission of the switch operation information to the control device. The controller may control the drive in response to the switch operation information. The switch can be operated in a mounted on the stretcher state by unlocking and / or folding at least a portion of the chassis of the stretcher. For automated pulling up the stretcher, the stretcher is aligned in front of the stretcher platform in a loading position, connected to the traction device, the switch actuated by unlocking the chassis and thereby turned on the drive and the stretcher pulled up.

From the WO 2012/006 719 A1 A stretcher lift for an ambulance vehicle is known which aids in loading a stretcher stretcher. There, in particular, an adjustable bridge plate, which closes the gap to a stretcher receptacle during loading, is described.

The WO 2009/135803 A1 describes a stretcher trolley for patient transport with a folding and unfolding chassis. There, a patient transport system is disclosed, comprising a patient transport stretcher with a lying surface for placing a patient. The patient transport system further includes a transport vehicle with a loading area for receiving the stretcher.

From the EP 1034 764 is a device with a loading table for a stretcher with chassis known. The stretcher is pushed onto the loading table for loading, which is arranged on a ramp. The ramp is pivoted to load in an inclined position. The chassis of the stretcher folds in and is supported by an auxiliary element. When the stretcher is fully positioned on the loading table, the ramp swings into a horizontal position.

The DE 10 2008 005 900 A1 discloses a telescopically extendable ambulance table for rescue vehicles. The ambulance table has a lower table, which is pivotable about a horizontal, perpendicular to a table longitudinal direction of the ambulance table tilting axis. Vorzugswelse the ambulance table is vertically adjustable. A retractable carrying receptacle serves to receive a patient transport means which is displaceably connected to the undertable in the table longitudinal direction by a limited distance. With a transport device, the patient transport means on the stretcher in the table longitudinal direction is moved back and forth. In this case, the transport device has at least one driver, which is drivable back and forth in the table longitudinal direction.

The GB 2 2003 999 A discloses a device for a stretcher and a stretcher with a retractable landing gear, wherein the device is provided for loading and unloading the stretcher on or from a support platform of a vehicle. It also comes a stretcher used, which receives the stretcher with folded chassis. The stretcher can be moved to deploy or for insertion along a linear guide. For the chassis of the stretcher is an adjusting device for folding the chassis when loading on the stretcher or unfolding the chassis of the stretcher provided during unloading. Furthermore, there is disclosed a pivoting device with drive means which pivots the linear guide with the stretcher support about an axis.

The known support platforms have the disadvantage that they must have on the one hand a drive for adjusting the height and on the other hand have to have a drive which pulls the stretcher on the stretcher or pushes. The support platform must namely be lowered so far that a stretcher gets under the stretcher. Rescue personnel then have to push the stretcher into the stretcher until it snaps into a towing device. The stretcher is then pulled in the stretcher up to a transport position. This system is not only very expensive, but also expensive because of the additional drives. The additional components needed to pull the stretcher into the stretcher also make this system more susceptible to interference.

Disclosure of the invention

The object of the invention is therefore to avoid the disadvantages of the prior art and to provide an auxiliary device for a support platform of an emergency vehicle, which allows the rescue personnel without lifting power bring the stretcher on the stretcher. The auxiliary device should be as easy as possible to operate and inexpensive to manufacture.

• e) einen Schalt- und Steuermechanismus vorgesehen ist, welcher die Tragenaufnahme mittels der Schwenkvorrichtung zum Beladen von einer schrägen Entladeposition in eine waagrechte Position führt, sobald sich die ausgebrachte Tragenaufnahme unter und hinter dem Schwerpunkt der Fahrtrage befindet.

According to the invention the object is achieved in that in an auxiliary device for a stretcher with a retractable landing gear for loading and unloading on a support platform of an emergency vehicle

• e) a switching and control mechanism is provided which guides the stretcher by means of the pivoting device for loading from an oblique unloading position to a horizontal position as soon as the deployed stretcher is below and behind the center of gravity of the stretcher.

While in the conventional and known auxiliary systems for loading the support platform either the rescue personnel had to spend considerable force to carry the stretcher on the stretcher, or an additional drive was required in the present invention, only a single drive is necessary to perform the pivoting movement , Rescue personnel also need to expend virtually no or very little physical force to move the stretcher. The auxiliary device is thus structurally simpler and thus not only less expensive, but also far less susceptible to interference. The stretcher is brought so far under and behind the center of gravity of the stretcher over the linear guide, that the stretcher can be pivoted high, in a horizontal or horizontal position without them tipping away. If necessary, the stretcher for the pivoting action releasably locked in a simple locking mechanism or anchoring the stretcher. If the stretcher is in a horizontal position, it is very easy for the rescue personnel to push the stretcher into the stretcher. The introduction of the stretcher via the linear guide in the rescue vehicle designed without much physical force. Thus, it is also for weaker rescue personnel easy to carry a patient with the stretcher in the rescue vehicle. Here, virtually no physical force is required. In particular, there are two advantages with the present auxiliary device: On the one hand, no additional drive is required and, on the other hand, the rescue personnel can conveniently carry the stretcher carrier into the carrying receptacle.

An advantageous embodiment of the auxiliary device according to the invention for a stretcher with a retractable landing gear for loading and unloading on a support platform of an emergency vehicle further consists in that the switching and control mechanism carries the stretcher by means of the pivoting device during unloading in the oblique unloading position as soon as the ejected Stretcher is located under the center of gravity of the stretcher. What applies to loading must preferably also apply to unloading. As long as the stretcher is in a horizontal position, the stretcher with the stretcher can be easily pulled out of the rescue vehicle along the linear guide. Only then the stretcher is brought into an inclined position so that the stretcher can be carried down by the stretcher. The chassis of the stretcher works out accordingly.

A further advantageous embodiment of the auxiliary device according to the invention for a stretcher trolley with a retractable landing gear for loading and unloading on a support platform of an emergency vehicle is that the stretcher on her Head and / or her foot has an additional guide roller assembly. This measure serves to ensure that the stretcher can still be moved in the stretcher recording when the chassis of the stretcher is completely or partially already folded to save space. The rollers of the guide roller assembly are guided in guides of the stretcher, such as in a rail.

A special embodiment of the auxiliary device according to the invention is further achieved in that fastening means are provided for releasably locking the stretcher in the stretcher. The fasteners fix the stretcher, especially during transport with the rescue vehicle in the stretcher. The stretcher can then not unintentionally loosen when braking or when accelerating from the stretcher.

It has been found as a special variant that in an auxiliary device according to the invention for a stretcher with a retractable landing gear for loading and unloading on a support platform of an emergency vehicle, the stretcher has a linear drive with which the stretcher is introduced or deployed in the stretcher, wherein the stretcher is anchored in an anchorage of the linear drive for movement. In order to avoid that any kind of force is used by the rescue personnel, it may be useful to collect the stretcher automatically in the horizontal or horizontal position in the stretcher. This can be generated by the linear drive a very constant movement, which can be very beneficial for the patient.

In a further advantageous embodiment of the auxiliary device according to the invention it is provided that the pivoting device has a pivot lever which pivots the linear guide and the stretcher holder for pivoting. The linear guide of the support platform is pivotable about an axis. Due to the lever arrangement, the linear guide is raised or lowered at one end. As a result, learns the linear guide together with the stretcher in the raised state an inclined position. In the lowered state, the linear guide with the stretcher receptacle is aligned substantially horizontally or horizontally. Due to the tilt, the Carrying be performed in the simplest way under the stretcher. By appropriate control of the pivot lever directs the linear guide with the stretcher to bring the arrangement in a horizontal position. The lever arrangement can also be easily realized.

A preferred embodiment of the auxiliary device for a stretcher invention further consists in that the support platform has a lifting device with which the stretcher support and / or linear guide can be raised or lowered. It may well be necessary to lower the stretcher further to guide it under the center of gravity of the stretcher. Once the stretcher is on the stretcher in the rescue vehicle, the patient may need to be treated acutely. The patient should therefore be easily accessible to a treating physician or other rescue personnel. With this measure, the stretcher can be raised so that the patient is easily accessible for treatment.

A further embodiment of the invention is that the adjusting device for the chassis of the stretcher is biased and automatically unfolds according to the position of the stretcher while unloading and collapses during loading. The bias voltage is generated for example by a spring or a spring-loaded device. As a result, the chassis is under tension and folds when inserting the stretcher in the stretcher automatically and works out appropriately when deploying. No additional force is required for this because the spring force supports the user here.

A further advantageous embodiment of the auxiliary device according to the invention is that a drive is provided with a control circuit with which the stretcher holder is moved on the linear guide. For complete automation and to save personnel, it may be advantageous to automate any operations during loading and unloading of the rescue vehicle. Therefore, in this variant, the stretcher is introduced by the drive via the linear guide in the rescue vehicle or deployed from the rescue vehicle.

In an advantageous embodiment of the auxiliary device according to the invention for a stretcher trolley with a retractable landing gear for loading and unloading on or from a support platform of an emergency vehicle, the guide roller assembly of the stretcher is guided in guides the stretcher. To stabilize the stretcher in the stretcher support the guide roller assembly is guided in guides the stretcher. The stretcher is limited in this way in their freedom of movement. It can only move in the guide, which is designed, for example, as a groove or rail.

In a preferred embodiment of the invention, a brake mechanism for the stretcher for holding or slowed down movement of the stretcher is provided in the stretcher. This braking device prevents, for example, that too fast unloading the stretcher is made. In addition, this braking device when pivoting the linear guide stabilize the stretcher in the stretcher and hold.

The invention further relates to a method for loading a support platform of an emergency vehicle with a stretcher trolley with a retractable landing gear and with such an auxiliary device according to the invention with the method steps for loading the support platform with a stretcher: First, the stretcher support is deployed on the linear guide. Then the stretcher is guided with the linear guide to below and behind the center of gravity of the stretcher and tilted without lifting the stretcher while doing so. Thereafter, the stretcher is pushed until the stretcher is located under the center of gravity of the stretcher trolley, with the trolley folding successively. As a next step, the stretcher support and the linear guide swings into a horizontal position and the stretcher is completely pushed onto the stretcher support. Thereafter, the stretcher is moved with the stretcher over the linear guide in a transport position.

The inventive method has the advantage that the stretcher can be transported with very little effort in the rescue vehicle. There are not any additional handles required to operate multiple drives. The loading process is greatly facilitated and automated.

The invention also relates to a corresponding inventive method for unloading a support platform of an emergency vehicle with a stretcher with a retractable landing gear and with an auxiliary device according to the previous claims with the method steps for unloading the support platform with a stretcher. Here, the stretcher is first deployed on the linear guide and tilted the stretcher with the linear guide. Then the stretcher can be pulled out of the stretcher with the chassis unfolding successively.

Further embodiments and advantages will become apparent from the subject of the dependent claims and the drawings with the accompanying descriptions. The claims are also made part of the description. An embodiment is explained below with reference to the accompanying drawings. The invention expressly does not relate solely to the embodiment described below. Rather, the invention is intended to cover all objects which are implemented with means and knowledge which now and in the future are available to the person skilled in the art as having the same effect.

Short description of the drawing

Fig. 1

shows a three-dimensional representation of a schematic diagram of the open box body of an emergency vehicle with an auxiliary device according to the invention.

Fig. 2

shows in a side view a schematic outline sketch of the box body according to Fig. 1 , wherein the auxiliary device according to the invention is intended to receive a stretcher.

Fig. 3

schematically shows the auxiliary device according to the invention in a first loading step for the stretcher.

Fig. 4

schematically shows the auxiliary device according to the invention in a second loading step for the stretcher.

Fig. 5

schematically shows the auxiliary device according to the invention in a third loading step for the stretcher.

Fig. 6

schematically shows the auxiliary device according to the invention in a fourth loading step for the stretcher.

Fig. 7

schematically shows the auxiliary device according to the invention in a fifth loading step for the stretcher.

Fig. 8

schematically shows the auxiliary device according to the invention with the stretcher in the transport state.

Preferred embodiment

in Fig. 1 is denoted by 10 an auxiliary device according to the invention. The auxiliary device 10 is provided in a box body 12 of an emergency vehicle 14. The box body 12 of the rescue vehicle 14 is only indicated in this schematic diagram. The auxiliary device 10 is mounted on the floor 16 of the open box body 12 open here. The auxiliary device 10 includes a support platform 18. The support platform 18 in turn comprises a carrying receptacle 20 for a stretcher support 22 (see Fig. 2 ) and a linear guide 24. The support holder 20 serves to receive the stretcher 22, as will be explained with reference to the following drawings. The stretcher 20 can be moved along the linear guide 24. The support platform 18 also has a lifting device 25, with which the carrier mount 20 and the linear guide 24 are raised or lowered can. The lifting device 25 can be driven electrically or hydraulically.

26 denotes a pivoting device of the support platform 18. The pivoting device 26 allows the pivoting of the linear guide 24 together with the support receptacle 20. A designed as a pivot lever lever assembly 28 of the pivoting device 26 is to be raised or lowered by drive means 30. The drive means 30 are usually formed by an electric motor, which is also supplied by the electrical supply of the rescue vehicle 14. The lever assembly 28 is connected to the linear guide 24. By actuating a switching and control mechanism 31, the drive means 30 are driven. About the drive means 30, the lever assembly 28 undergoes a pivotal movement about an axis 32. This pivotal movement is transmitted to the linear guide 24, so that the linear guide 24 reaches the stretcher 20 in an oblique loading and unloading. The linear guide 24 is pivoted with the support holder 20 about a pivot axis 34. The pivot axis 34 may be shifted as needed, i. in the direction of the box body 12 in or out of the box body 12 out.

The stretcher 20 has guides 36. About the guides 36, the stretcher 22 is pushed or pulled on the stretcher 20. Furthermore, a linear drive 38 is located on the carrier mount 20. The linear drive 38 includes an armature slide 40, which runs along a rail arrangement 42 on the carrying mount 20. The stretcher bracket 22 engages in the anchor carriage 40 and can be pulled on the one hand on the support bracket 20 for automation or on the other hand pushed out. In the present exemplary embodiment, the armature slide 40 also serves as a braking mechanism 44, which prevents the traveling stretcher 22 from moving too quickly from the stretcher support 20 during unloading.

Fig. 2 shows a schematic side view of a schematic diagram of the box body 12 in accordance with a side view Fig. 1 , In this view, it is shown that the inventive Auxiliary device 10 is to receive the stretcher 22. As far as the Fig. 2 of the Fig. 1 are the same reference numerals are used for corresponding components. The box body 12 of the rescue vehicle 14 is shown without side wall, so that the support platform 18 is completely visible in the side view.

The stretcher 22 is a stretcher 46 with a landing gear 48. The stretcher 46 can thus be conveniently moved with a patient without the rescue personnel having to lift the stretcher 46 with the patient. Lateral rod 47 on the stretcher 46 prevents the patient from falling off the stretcher. The chassis 48 of the stretcher 22 is formed retractable towards the rear. A suitable chassis frame 50 not only stabilizes the chassis 48, but also serves as the actuator 51 for the chassis 48 so that it is released for folding and performs a suitable movement when folding. In the folded state, the chassis 48 is below the support 46, as for example in the FIGS. 7 and 8th you can see. The stretcher 22 is not on the stretcher 20, which is why the chassis 48 is unfolded here on the stretcher 22 for the transport of the patient. In the front and in the rear region of the support 46 are respectively guide roller assemblies 52, 54, with which the stretcher support 22 can be moved on the support bracket 20 in the guides 36 when the chassis 48 is folded.

The linear guide 24 of the support platform 18 is tilted. For this purpose, the lever arrangement 28 of the pivoting device 26 has lifted the linear guide 24 at one end 56. The linear guide 24 is pivoted about the pivot axis 34. The stretcher 20 is extended along this linear guide 24. The stretcher 20 is also inclined by its parallel to the linear guide 24 position, so they can get under the stretcher 22. In this case, the support receptacle 20 is aligned so that it comes behind and below the center of gravity 55 of the stretcher bracket 22.

In the FIGS. 3 to 8 the basic loading process with the auxiliary device 10 according to the invention for loading and unloading the stretcher carrier 22 is shown. It will only schematically shows the support platform 18 with the stretcher 22 schematically. As far as these FIGS. 3 to 8 The same reference numerals are used to correspond to the previous figures.

In Fig. 3 is the stretcher 22 with unfolded chassis 48 analogous to Fig. 2 to see. The chassis 48 consists of a front chassis 58 and a rear chassis 60. The linear guide 24 is made oblique with the extended stretcher 20 by means of the pivoting device 26. The front guide roller assembly 52 enters the guides 36 of the stretcher 20. The stretcher 22 is finally pushed further in the guide 36 as shown in FIG Fig. 4 you can see.

In the view of Fig. 4 already works the front landing gear 58 a. The front guide roller assembly 52 is already guided in the guides 36. Arrow 62 indicates the movement of the stretcher 22.

In Fig. 5 the front landing gear 58 no longer touches the ground and is already almost fully retracted. As a result, the stretcher support 20 comes under the focus of the stretcher 22. The pivoting device 26 is now actuated by the switching and control mechanism 31, which is indicated by arrow 64. The drive means 30 move the lever assembly 28 until the linear guide 24 with the stretcher 22 in a horizontal or horizontal position as it enters Fig. 6 you can see. The front landing gear 58 is completely folded onto the stretcher 46. Since the stretcher 22 is now in the horizontal position on the stretcher 20, no further physical lifting operation of the stretcher 46 must be made.

The stretcher 22 is now pushed with the guide roller assemblies 52, 54 in the guides 36 to an end position on the stretcher 20, as shown in FIG Fig. 7 is pictured. The rear landing gear 60 also works on the stretcher 46. The rear roller assembly 54 also passes into the guides 36. Die Carrier 20 is pushed with the stretcher 22 along the linear guide 24. This sliding process is symbolized by arrow 64.

In Fig. 8 has the stretcher 22 and the stretcher 20 on the linear guide 24 reaches a transport position 66. The stretcher 20 is located with the stretcher 22 in a horizontal position in the box body 12 of the rescue vehicle 14. In the transport position 66, the stretcher bracket 22 is releasably locked with fasteners 68 in the stretcher 20, whereby the stretcher bracket 22 is fixed on the support platform 18 during transport is.

10

Hilfsvorrichtung

12

Kofferaufbau

14

Rettungsfahrzeug

16

Boden

18

Tragenplattform

20

Tragenaufnahme

22

Fahrtrage

24

Linearführung

25

Hubvorrichtung

26

Schwenkvorrichtung

28

Hebelanordnung

30

Antriebsmittel

31

Schalt- und Steuermechanismus

32

Achse

34

Schwenkachse

36

Führungen

38

Linearantrieb

40

Ankerschlitten

42

Schienenanordnung

44

Bremsmechanismus

46

Trage

47

Seitliches Gestänge

48

Fahrwerk

50

Fahrwerksgestell

51

Stellvorrichtung

52, 54

Führungsrollenanordnung

55

Schwerpunkt

56

Ende der Linearführung

58

vorderes Fahrwerk

60

hinteres Fahrwerk

62, 64

Pfeil

66

Transportposition

68

Befestigungsmittel

The sliding operation with the stretcher support 22 on the stretcher receptacle 20 can be facilitated by the linear drive 38. For this purpose, the support 46 is anchored in the anchor carriage 40. The anchor carriage 40 pulls the stretcher 22 in the corresponding positions as in the FIGS. 3 to 8 are shown. When removing the stretcher 22 from the support platform 18 of the anchor carriage 40 acts with the brake mechanism 44. This prevents the stretcher 22 from getting too fast from the stretcher 20.

10

auxiliary device

12

Kofferaufbau

14

rescue vehicle

16

ground

18

wearing platform

20

Stretcher receiver

22

stretcher trolley

24

linear guide

25

lifting device

26

swivel device

28

lever assembly

30

drive means

31

Switching and control mechanism

32

axis

34

swivel axis

36

guides

38

linear actuator

40

anchor slide

42

rail arrangement

44

brake mechanism

46

Sluggish

47

Side linkage

48

landing gear

50

chassis frame

51

locking device

52, 54

Guide roller assembly

55

main emphasis

56

End of the linear guide

58

front landing gear

60

rear suspension

62, 64

arrow

66

transport position

68

fastener

Claims (13)

1. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) where the auxiliary device is used for loading and unloading the stretcher trolley (22) onto and from a stretcher platform (18) of a rescue vehicle (14), comprising

   a) a stretcher holder (20) which supports the stretcher trolley (22) with the undercarriage (48) retracted,

   b) a linear guide (24) along which the stretcher holder (20) can be moved in and out of the vehicle,

   c) an actuating device (51) for the undercarriage (48) of the stretcher trolley (22) to fold in the undercarriage when loading onto the stretcher holder (20) and to fold out the undercarriage (48) of the stretcher trolley (22) when unloading,

   d) a pivoting device (26) with drive means (30), which pivot the linear guide (24) with the stretcher holder (20) around an axis (34),
   characterized in that

   e) a switching and control mechanism (31) is provided that guides the stretcher holder (20) by means of the pivoting device (26) for loading from an inclined unloading position to a horizontal position as soon as the extended stretcher holder (20) is located below and behind the center of gravity of the stretcher trolley (22).
2. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to Claim 1, characterized by the switching and control mechanism (31) which guides the stretcher holder (20) by means of the pivoting device (26) when unloading to an inclined unloading position as soon as the extended stretcher holder (20) is located below the center of gravity of the stretcher trolley (22).
3. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 or 2, characterized in that the stretcher trolley (22) has an additional guide roller arrangement (52, 54) on its head and/or foot area.
4. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 3, characterized in that there are fastening elements (68) provided for releasably locking the stretcher trolley (22) in the stretcher holder (18).
5. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 4, characterized in that the stretcher holder (20) has a linear drive (38) with which the stretcher trolley (22) is inserted into and removed from in the stretcher holder (20), whereby the stretcher trolley (22) is anchored in an anchor (40) of the linear drive (38) for the purpose of movement.
6. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 5, characterized in that the pivoting device (26) has a swiveling lever (28) which pivots the linear guide (24) and the stretcher holder (20) for swiveling.
7. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 6, characterized in that the stretcher platform (18) has a lifting device (25) with which the stretcher holder (20) and/or linear guide (24) can be raised and lowered.
8. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 7, characterized in that the inclined device (51) for the undercarriage (48) of the stretcher trolley (22) is preloaded and automatically folds out when unloading and folds in when loading according to the position of the stretcher holder (20).
9. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to to one of Claims 1 to 8, characterized in that a drive with a control circuit is provided with which the stretcher holder (20) is moved on the linear guide.
10. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 9, characterized In that the guide roller arrangement (52, 54) of the stretcher trolley (22) is guided into guides (36) of the stretcher holder (20).
11. Auxiliary device (10) for a stretcher trolley (22) and a stretcher trolley (22) with a retractable undercarriage (48) for loading onto and unloading from a stretcher platform (18) of a rescue vehicle (14) according to one of Claims 1 to 10, characterized in that a braking mechanism (44) is provided for the stretcher trolley (22) to stop or to slow the motion of the stretcher trolley (22) in the stretcher holder (20).
12. Method for loading a stretcher platform (18) of a rescue vehicle (14) with a stretcher trolley (22) with a retractable undercarriage (48) and with an auxiliary device (10) according to the previous claims with the steps for loading the stretcher platform (18) with a stretcher trolley (22):

    a) removing the stretcher holder (20) via the linear guide (24),

    b) inclining the stretcher holder (20) with the linear guide (24) until the stretcher holder (20) is below and behind the center of gravity (55) of the stretcher trolley (22) without lifting the stretcher trolley (22),

    c) pushing the stretcher trolley (22) until the stretcher holder (20) is located below the center of gravity of the stretcher trolley (22), whereby the undercarriage (48) successively retracts,

    d) pivoting the stretcher holder (20) and the linear guide (24) to a horizontal position,

    e) completely pushing the stretcher trolley (22) onto the stretcher holder (20).

    f) moving the stretcher holder (20) with the stretcher trolley (22) via the linear guide (24) to a transport position (66).
13. Method for unloading a stretcher platform (18) of a rescue vehicle (14) with a stretcher trolley (22) with a retractable undercarriage (48) and with an auxiliary device (10) according to the previous claims with the steps of the method for unloading the stretcher platform (18) with a stretcher trolley (22):

    a) removing the stretcher holder (20) via the linear guide (24),

    b) inclining the stretcher holder (20) with the linear guide (24),

    c) pulling the stretcher trolley (22) out of the stretcher holder (20), whereby the undercarriage (22) successively folds out.

Images