DE8525909U1 - Transfer platform for an ambulance vehicle - Google Patents

Description

BY KRiISLER SCHÖNWALD EiSHOLD FUES FROM KREiSLER KELLER SELTING WERNER

Hans Stollenwerk ü * GmbH & Co.

Deiibrücker Hauptstrasse 197/201

5000 Cologne 80

PATENT LAWYERS

Dr.-Ingi von Kreisler 11973
Df.-Ing. KW Eishöld 1 1981

Dr.-Ing, K, Schönwald Dr. JF Fues Dipl.-Chem. Alek von Kreisler Dipl.-Chem. Carola Keller Dipl.-Ing. G. Setting Dr. H.-K. Werner

DEICHMANNHAUS AT THE MAIN RAILWAY STATION

D-5000 COLOGNE 1

Sg-Sk
Sep 10, 1985

Transfer platform for an ambulance vehicle

The invention relates to a sliding platform for an ambulance vehicle, with a to be attached to the vehicle Frame on which a support frame is guided displaceably in the longitudinal direction, and with at least a locking device provided on the support frame, which is connected to a locking element on the Support frame attachable stretcher engages to fix the stretcher on the support frame.

Known transfer platforms of this type have a frame which is fixedly or movably attached to the vehicle and on which the support frame for receiving the stretcher is displaceable in the longitudinal direction in order to be placed on it the stretcher to be pulled out of the rear opening of the vehicle. To fix the stretcher Inside the vehicle, a locking device is provided on the support frame, which is attached to engages a locking element of the stretcher.

On the other hand, it is also pushed into the vehicle Support frame locked against sliding back in relation to the frame. So the stretcher is first attached to the support frame and this in turn is fixed to the frame. Such a one Fixing the stretcher on the support frame as an intermediate link can cause undesirable movements during travel the stretcher as both uic FiXlSiTUnCj uca Tr5yycStcj.j.S 1Π jjSZUg ΰ'ΰΐ. «ΘΠ * ν5χ» ΙΓ12ϊϊ as well as that of the stretcher has a certain play in relation to the support frame and these two Games add up.

The invention is based on the object of creating a transfer table of the type mentioned at the outset, in which the stretcher is held in a defined manner with respect to the vehicle and in particular against vertical Movements is largely secured free of play.

To solve this problem, the invention provides that a hold-down device is attached to the frame or the vehicle, which is connected to an engaging part of the Stretcher engages when it is fixed on the support frame and the support frame on the frame in the transport position is advanced.

In the transfer table according to the invention, the hold-down device attached to the frame or to the vehicle overlaps the Support frame and acts directly on the stretcher to vertical movements of the stretcher with respect to to prevent the vehicle. The hold-down device automatically attacks the stretcher when it is on the Support frame is fixed and the support frame is pushed into the vehicle. One that can be operated by hand

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Locking device is not required here, but the hold-down device can also mi
Such a locking mechanism must be provided.

'. borrowed, but the hold-down can also be used with a

According to a preferred development of the invention, further hold-down devices are attached to the support frame

brought together that engage with corresponding engagement parts of the stretcher when the locking

element Tflit «äer locking device in engagement

ΐ 10 is. In this way, for example, a four-point bracket , 1- can be realized in which the stretcher is

(l, including four places, e.g. on the axles of the four wheels,

j! 'is held or held down. With such a Four-point bracket is at least one hold-down device or a locking device that is fixed on the vehicle side attached, while at least one further hold-down device or another locking device on the Support frame is attached.

In an advantageous development of the invention it is provided that the locking device in the vicinity of the is arranged from the vehicle interior to the outside end on one side of the support frame and that a Hold-down on the same side on the opposite

\ 25 at the end of the support frame, but offset to the side

is arranged to the locking device, so that the engaging part engaging with this hold-down device when the stretcher is pushed onto the support frame moved past the locking device

S 30 will. In this embodiment, it is automatic

* made sure that the front (based on the vehicle)

Engaging part of the stretcher when the

• ι Do not carry the crane on the support frame with the back

interlocking device on the same side

-ΑΙ ' but interferes with the locking device f

direction is moved past. The two engagement parts; i

which are arranged on the same side of the stretcher f

are, from this side to opposite ||

Directions. %

A preferred embodiment of the invention is characterized in that the support frame is angular in side view, that the frame ^{is angled downwards at the front end 1} and that the one on the ^

Frame attached hold-down device in the rear area yes' of the frame is arranged in such a way that it is when extended; renem, inclined support frame below the path lies, which passes through the specific engagement part of the stretcher for the front hold-down device. The usage a frame with a downwardly angled front end in connection with a support frame that is shown in Side view is angled is known. This construction causes the supporting surface of the support frame is horizontal in the operating state, but is inclined backwards and downwards when the support frame is driven out of the vehicle. This means that the stretcher can be placed on by a lower contact height relieved. When the support frame is then pushed into the vehicle together with the stretcher, the stretcher pivots first slowly and then as a result of the course of the rails of the frame always stronger in the horizontal state. These kinematic conditions are used according to the invention, to prevent the front engaging member the stretcher with the rear hold-down device, which is attached to the frame,

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lidated. Since when inserting the support frame into the Frame, the support frame is inclined, moves the relevant engagement part of the standing on the support frame Stretcher over the hold-down device. This only arises in the final phase of the insertion process Support frame horizontally and in this state engages the rear engaging part of the stretcher the hold-down device attached to the frame or vehicle. The two engagement parts can therefore be the same Side of the stretcher stick out without the rear hold-down device when the support frame is pushed in front engaging part "catches" that does not cooperate is determined with this hold-down device.

Another problem with transfer platforms is that they can be shock-lowered. As is well known, must the patient's body tilted with the head down in shock. The known Transfer platforms have for this purpose complicated adjustment mechanisms, which are often operated using a large one Force is required if an adjustment is to be made under the weight of the patient. The invention is still based on the task of creating a transfer table that is easy and safe to adjust the shock low position allows.

To solve this problem, according to a preferred development of the invention, this also has an independent meaning has provided that the frame rests on a pedestal and the front end of the pedestal protruding downwardly angled area has that the frame is arranged around a in the vicinity of the bend is pivotable around transverse axis and that an adjusting device engages on the frame for pivoting the frame about the axis.

In this transfer table, the rigid frame on which the support frame is displaceable is a transverse one Axis around pivoted relative to the pedestal fixedly attached to the vehicle. The axis can be arranged be that the weight of the patient is relatively evenly distributed on both arms of the frame formed two-armed lever distributed, so that only a small amount of force is required to pivot is. Due to the locking device, the inclination of the frame is in different angular positions fixable, so that the angle of the shock deep positioning can be changed by the medical staff.

The adjusting device preferably consists of a lockable gas pressure spring. Such a gas spring is an energy storage device that is charged confusedly when pressed together and discharged again when released. Important is, <? =?. ß the gas pressure spring can be locked, i.e., that in the locked state it is a rigid arm with no resilience.

The adjustment device can be coupled to a locking device that does not pivot the frame Locked state on the pedestal when the adjusting device is locked. With this additional locking double security against pivoting of the frame in the basic position is achieved, in that the stretcher is horizontal.

In the following, an embodiment of the invention is explained in more detail with reference to the drawings.

Show it:

1 shows the loading space of an ambulance vehicle with a sliding platform,

Fig. 2 is a perspective view of the transfer table,

3 shows a side view of the transfer table,

FIG. 4 is a plan view of FIG. 3,

10

Fig. 5 on an enlarged scale along a section the line V-V of Fig. 4,

6 shows a side view of the transfer table with the supporting frame retracted,

; 7 shows a section along the line VII-VII from

Fig. 6,

FIG. 8 shows a section along the line VIII-VIII from FIG. 6,

9 shows a simple side view of the transfer table

Shock deep storage,
Π5

<FIG. 10 is a view from the direction of arrow X of FIG

Fig. 4, but with shock low storage and

FIG. 11 shows a section along the line XI-XI from FIG. 10.

The shift stage is shown in FIG. S. On a pedestal 10 mounted on the bottom of the Krahkentranöpörtfähr-

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stuff is firmly attached. The pedestal 10 contains drawers 11 or other Äüfnahmefächer for receiving Bandages, etc. The podium 1Ö is near the Attached to a side wall of the vehicle and it essentially takes up one side half of the cargo space one, while the other half is available for the medical staff, equipment and the like.

The frame 12 is attached to the top of the pedestal 10. On the frame 12, the support bracket 13 is displaceable in the longitudinal direction. The support frame 13 can be pulled out of the vehicle in an inclined position in order to place the stretcher 14 on it. Then the support frame 13 with the stretcher 14 standing in front of it is pushed into the vehicle.

According to FIG. 2, the front end (in relation to the vehicle) of the pedestal 10 is provided with a bevel 10a. The frame 12 has two parallel U-shaped rails 12a, 12b, the guide slots of which correspond to each other are facing. The rails 12a and 12b are connected to one another at their ends by cross members 12c and 12d, so that the frame 12 is rigid as a whole. The rails 12a and 12b are in the front above the area 10a Area 15 angled downwards, but this angling is less than that of the pedestal 10. Below the kink is a hinge, about the transverse axis 16 of the frame 12 with respect to the platform 10 is pivotable.

The support frame 13 consists of a rectangular plate 17, which on its periphery of protruding edge strips 18 is surrounded in order to guide the wheels 19 of the stretcher 14. The plate 17 points to the weight

Savings in the front half a recess 20> which is bounded laterally by longitudinal webs 21 on which the wheels 19 can run. Around the recess 20 also runs around a skirt 22 that the Web 21 limited inwardly.

The hold-down devices attached to the support frame 13 serve to fix or hold down the stretcher 14 23, 24, the locking device 25, which is also attached to the support frame, and the locking device 25 on the frame 12 attached hold-down clamps 26. The hold-down clamps 23, 24 and 26 each consist of an angular part, which has an upstanding leg and a rearwardly facing upper leg. On the stretcher 14 engaging steep 27, 28, 29 and 30 are attached to the hold-down devices 23, 24 and the locking device 25 and the hold-down device 26 cooperate. These engagement parts are pegs that are coaxial too the wheels 19 are arranged and protrude laterally from the axle bearings. The engaging part 27 on the front The left end of the stretcher 14 points inwards with respect to the stretcher, while the engagement part 29 at the left rear end facing outwards. Accordingly, the hold-down device 23 is on the inside of the web 21 arranged, while the locking device 25 is arranged on the outside of the support frame 13. on this prevents the engagement part 27 from colliding with the locking device 25 when the stretcher 14 is pushed onto the support frame 13.

The hold-down device 24 at the right front end of the support frame 13 is fastened on the outside of the frame strip 18 and the hold-down device 26 is also attached to the outside of the frame 12, so that both hold-down devices 24 and 26 in

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a common longitudinal plane of the transfer table are arranged. Accordingly, the engagement parts 28 and 30 of the right side of the stretcher 14 both protrude outward, that is, in the same direction.
5

The support frame 13 is designed angular in side view. This means that from the front end of the Plate 17 two arms 31 protrude downwards at right angles. At the ends of this Αγπίθ are rollers 32 gs— which engage in the slots of the guide rails 12a and 12b. Further roles 33 are in the middle area the length of the support frame 13 is mounted below the plate 17. These roles 33 also run in the Guide rails 12a and 12b.

When the support frame 13 is in the advanced state, the rollers 3 2 are at the front end of the Frame 12 so that the surface 17 is horizontal. If the support frame is pulled out of the vehicle, then it arises according to FIGS. 1 to 3 at an angle, the rear end of the surface 17 facing downwards. on In this way, the stretcher 14 with its front wheels 19 can be placed more easily on the support frame to then be pushed forward on the locked support frame. With this advancement the front engagement moves steeply 27 past the locking device 25 and the front engagement part 28 moves over the hold-down device 26. When the stretcher has reached its end position, slide the front engagement parts 27 and 28 under the relevant hold-down devices 23 and 24, while at the same time the Engaging part 29 engages in the locking device 25. In this way, the stretcher 14 fixed relative to the support frame. If then

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the support frame 13 is pushed into the vehicle, the engagement slides steeply 30 under the hold-down device 2 (5 *

If the hold-down device 26 is thus only when it is pushed in

";,>, Carrying frame effective and he holds the stretcher over

the support frame 13 away directly to the frame 12.

The locking device 25 is designed such that it engages the engaging part 29 pushed into it holds and only releases after actuation of a release lever 35. The locking device

25 is located near the rear end of the

I ^{I support} frame so that it can be used by the medical staff of '■. can be easily operated outside the vehicle.

■ 15 on the underside of one web 21 of the support frame r 13 is according to FIGS. 4 and 5 a downward protruding one

and attached to the rear curved hook 36, which in the extended position of the support frame in an eyelet 37 on rear crossbar 12c of the frame 12 engages. In this way, on the one hand, the pull-out movement of the Support frame 13 and, on the other hand, prevents the support frame 13 from lifting off from the frame 12.

On the one guide rail 12b of the frame 12 triangular stops 38 and 39 are provided, which with a controllable bolt 40 of the support frame 13 cooperate. The bolt 40 is on a longitudinal Rod 41 is attached, which is rotated by actuating a lever 42 at the rear end of the support frame 13 30 can be to the latch 40 from the guide rail

12b fold outwards. The front end of the rod 41 is fastened to the support frame 13 in a torsion bearing 43. The bolt 40 is held in contact with the outside of the rail 12b by the torsion bearing 43.

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When pulling out the support frame 13, the bolt slides across the inclined surface of the rear stop 38 to, according to FIG. 4, behind the steep surface of the stop 38 fold back again. This locks the pull-out position. To unlock the Lever 42 pivoted, whereby the rod 41 is rotated so that the bolt 40 folds outward and the Stop 38 can happen.

The locking of the support frame in the insertion position takes place duroh the stop 39, its steep surface that of the stop 38 is turned away. When the support frame is pushed in, the bolt 40 slides over the inclined surface of the stop 39 in order to lock in front of the steep front surface of this stop. Before pulling out of the support frame must by actuating the lever 42 of the bolt 40 from the stop 39 (Fig. 6) be lifted off.

To limit the forward movement of the support frame is a back at the rear end of the support frame L-shaped hook 44 pointing at the bottom and front is attached, the horizontal web of which is in the inserted position engages in a (not shown) slot of the crossbar 12c and thus the support frame in addition against lifting from the frame 12 secures.

In order to be able to set the sliding platform in the shock low position, the frame 12 can be pivoted around the axis 16 according to FIG. 9 until rubber buffers 4 5 attached to the front end of the frame 12 touch the floor of the cargo space. For x ⁿ r ^<u precisely the rear portion of the frame 12 diet '^ e adjusting device 46 which has a gas pressure spring 47th The piston rod

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the gas pressure spring 47 is connected to a pivot bearing 48 which is attached to the bottom of the pedestal 10, while the cylinder is articulated to the underside of the rear arm of the frame 12. One end of the bellows 49, which surrounds the protruding part of the gas pressure spring 47, is attached to the top of the platform. The gas pressure spring 47 is designed in a known manner so that it is unlocked when a pin 51 extending through its piston rod 50 (FIG. 10) is pressed in. In the unlocked state, the length of the gas pressure spring 47 can be changed. The unlocking takes place by turning a cam 52 mounted on the pivot bearing 48, against whose circumferential surface the pin 51 presses. The axis 53 of the cam 52 (FIG. 11) is firmly connected to a lever 54. At the end of the lever 54, a rod 5 6 engages via a joint 55, the end of which is connected to a lever mechanism 57 at the front end of the pedestal 10. By pivoting the lever mechanism 5 7 in Rieh- | direction of the arrow 58 in FIG. 6, the cam 52 is rotated so H that the pin 51 is pressed into the piston rod 50 and the unlocking of the gas spring takes place. This unlocking corresponds to that in Fig. 10 | indicated arrows. The gas pressure spring 47 then pushes the frame 12 into the tilted position.

The lever 54 of the pivot bearing 48 is via a spring | 59 biased to the locking position. This is | indicates that when you let go of the lever mechanism 57 the Gas pressure spring 47 automatically assumes the locking position in which the piston rod 50 with respect to the Cylinder is firmly locked.

The rod 56 is beyond the lever 54 by a

- Z

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Extended rod 60, the rear end of which is guided in a transverse beam 61 of the pedestal 10 (FIG. 5). That from the crossbar 61 protruding end of the rod 60 engages in a bore of one of the rear end of the Frame 12 protruding downward tab 62 when the frame 12 is in the basic position and the adjustment device 45 is locked, i.e. when the lever mechanism 57 is released. When unlocking the locking device 46, the end of the rod 60 is pulled out of the tab 62 at the same time, so that the frame 15 is released for pivoting about the axis 16 around. The rod 60 forms together with the tab 62 a locking device 60, 62 for holding the frame 12 in the basic division, in which the support frame 13 lies horizontally in the inserted state.

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Claims (8)

- 15 CLAIMS 1. Transfer platform for an ambulance with a frame (12) to be fastened to the vehicle, on which a support frame (13) is displaceable in the longitudinal direction and with at least one on Support frame (13) provided locking device (25) with a locking element J (29) which can be placed on the support frame (13) The stretcher (14) engages in order to fix the stretcher on the support frame,
characterized,
that on the frame (12) or on the vehicle a hold-down device (26) is attached, which engages steeply (30) of the stretcher (14) with an engagement when it is on the support frame (13) \ is fixed and the support frame (13) on the Frame (12) advanced into the transport position j will. 2 . Transfer platform according to claim 1, characterized in that further hold-down devices (23,24) are attached to the support frame (12) which engage with corresponding engagement parts (27,28) of the stretcher (14) when the locking element (29) with the locking device (25) is engaged. 3. Transfer platform according to claim 1 or 2, characterized in that the locking device (25) in the vicinity of the end facing outwards from the vehicle interior on one side of the support frame (13) is arranged and that a low holder (23) on the same side at the opposite end of the support frame (13), but laterally , offset to the locking device (25) is arranged / so that with this hold-down (23) engaging part (27) at Slide the stretcher (14) onto the support frame (13) on the locking device (25) is moved past 4. Transfer platform according to one of claims 1 to 3, characterized in that the support frame (13) . '. is angular in side view that the Rannen {■■ · (12) on the front E: ide angled downwards and that the hold-down device (26) attached to the frame (12) is in the rear region of the frame is arranged so that it is below the extended inclined support frame (13) The way that this is for the front hold-down device (24) b: correct engagement part (28) of the stretcher (14) passes through. 5. Transfer platform, in particular according to claim 1, characterized in that the frame (12) on a pedestal (10) rests and a front end (10a) of the pedestal protruding above, downwardly • angled area (15) has that the frame (12) is pivotable about a transverse axis (16) arranged in the vicinity of the bend and that on the frame (12) an adjusting device (46) for pivoting the frame (12) around the Axis (16) attacks around. 6. Transfer platform according to claim 5, characterized \ marks / that the adjusting device (46) with 4 ♦ * ♦ • ί · «♦ ♦ It Mil I« «· · t * m · t ■ - 17 - a locking device (60,62) is coupled, which attach the frame (12) in a pivoted state the platform (10) locked when the adjusting device (46) is locked. 7. Transfer platform according to claim 5 or 6, characterized in that the adjusting device (46) a lockable gas pressure spring (47). 8. Transfer platform according to one of claims 5 to 7, characterized in that the adjusting device (46) via a linkage (56) with an actuating lever arranged on the side of the pedestal (57) is connected.