DE102006011852B3 - Travel device for gurney or stretcher, has hand grip designed in L-shape and long first side piece which can be grasped by hand whereby short second side piece running right angled to this first side piece is also provided - Google Patents

Abstract

Travel device has handle (100) designed in L-shape and a long first side piece (106) which can be grasped by hand. A short second side piece (104) running right angled to this first side piece is also provided. Each handle is pivoted at the free end of its second side piece around a swivel axis running right angled to the longitudinal and traverse spars (18) at the frame in the area of a corner joint element (17). Each handle extends out in its resting position from the swivel axis with its second side piece traverse to the longitudinal spar and extends out with its first side piece parallel to the longitudinal spar and across the traverse spar. The folding out handles are positioned at an end of the frame, whereby each handle attaches to the frame in a resting position and projects in an operating position across the end of the frame.

Description

The The invention relates to a driving device for a stretcher with a frame, the pivotally mounted legs with running or Has casters, and also for improved handling of the driving equipment with and foldable handles is provided.

Trolleys for stretchers are known in principle. Such devices facilitate the transport of lying on a stretcher or stretcher people or, for example, mobile incubators. Examples of harnesses for stretchers can be found in DE 37 34 902 C1 . DE 39 27 484 C1 . DE 88 01 007 U1 . DE 91 10 586 U1 . DE 295 02 088 U1 and US 4,405,172 ,

The known driving devices for stretchers a frame made up of longitudinal and cross beams is composed and has corner connectors. On the frame are front and rear legs with casters pivoted. The locking and unlocking of these legs is done by operating lever. Should such driving equipment be raised or lowered, so the paramedics have the driving device on its frame, at the front and rear Querholmen, where also the operating lever are arranged.

in the It is also known in the state of the art, on the frame of a driving device, at least to provide at the front end fold-out handles, the rest in a rest position laterally on the frame and in a position of use over the end survive the frame. These handles "lengthen" the side rails of the frame of the driving device over at least one of its ends and allow a paramedic to do the driving device or the frame of the driving device can lift and lower comfortably even under load, as the paramedics Weight of the frame of the driving device, the Keep stretchers and the person to be transported on both sides can, on the one hand ergonomic and also of the distribution of forces is advantageous.

Swiveling L-shaped handles are out on stretchers DE 18 03 349 A and US 5,069,465 known.

task The invention is a driving device for a stretcher or stretcher with folding out at his frame handles with regard to their handling continue to improve.

• – einem Rahmen, der Längs- und Querholme aufweist, die durch Eckverbindungselemente untereinander verbunden sind,
• – vorderen und hinteren, am Rahmen verschwenkbar gelagerten Beinen mit Lauf- bzw. Lenkrollen,
• – Betätigungshebeln zum Verriegeln und Entriegeln der vorderen und hinteren Beine und
• – ausklappbaren Handgriffe, die zumindest an einem Ende des Rahmens an diesem gelagert sind, wobei jeder Handgriff in einer Ruheposition am Rahmen anliegt und in einer Gebrauchsposition über das Ende des Rahmens übersteht.

To solve this problem, a driving device for a stretcher or stretcher is proposed with the invention, which is provided with

• A frame having longitudinal and transverse spars interconnected by corner joints,
• - front and rear, pivotally mounted on the frame legs with running or steering rollers,
• - Operating levers for locking and unlocking the front and rear legs and
• - Folding handles, which are mounted at least at one end of the frame to this, each handle in a rest position against the frame and projects in a use position on the end of the frame.

• – dass jeder Handgriff L-förmig ausgestaltet ist und einen mit einer Hand erfassbaren langen ersten Schenkel und einen zu diesem im wesentlichen rechtwinklig verlaufenden kurzen zweiten Schenkel aufweist und
• – dass jeder Handgriff an dem freien Ende seines zweiten Schenkels um eine im wesentlichen rechtwinklig zu den Längs- und Querholmen verlaufende Schwenkachse am Rahmen im Bereich eines Eckverbindungselements schwenkbar gelagert ist,
• – wobei sich jeder Handgriff in seiner Ruheposition von der Schwenkachse aus entlang dem Eckverbindungselement und dem Querholm erstreckt und sich in der Gebrauchsposition von der Schwenkachse aus mit seinem zweiten Schenkel quer zum Längsholm und mit seinem ersten Schenkel parallel zum Längsholm und über den Querholm hinaus erstreckt.

In this driving device is provided according to the invention,

• - That each handle is L-shaped and has a detectable with one hand long first leg and a substantially perpendicular to this extending short second leg and
• - That each handle is pivotally mounted at the free end of its second leg about a substantially perpendicular to the longitudinal and transverse bars extending pivot axis on the frame in the region of a corner connecting element,
• - Wherein each handle extends in its rest position from the pivot axis along the corner connecting element and the cross member and extending in the use position of the pivot axis with its second leg transverse to the longitudinal spar and with its first leg parallel to the longitudinal spar and beyond the transverse spar out.

at According to the invention, the two are at least at one end of the frame existing handles L-shaped designed, each handle a long first leg and a substantially perpendicular to this short having second leg. With the free end of his second thigh each handle is pivotally mounted on the frame, on one Longitudinal spar and at a right angle to the longitudinal and transverse bars, so perpendicular to the plane spanned by the frame extending pivot axis. This pivot axis is in the range of one Eckverbindungselements. In the folded state extends each handle viewed from the pivot axis along the Longeron, the corner connector and the cross member. In the use position on the other hand, each handle is of the respective longitudinal spar laterally, with the second leg transverse to the longitudinal spar and the first leg parallel to the longitudinal spar and over the cross member goes out.

The placement of the handles in their rest positions on the frame is conceivable space saving by the handle adapts to the contour of the frame in the corner connector areas. The handles may be in the rest position below or above the frame or externally around a corner connector of the frame. By pivoting by only 90 ° from the rest position, each handle can be converted into its position of use. In this position of use, the distance between the two handles on the at least one end of the frame is greater than the transverse extent of the frame, as by the angular design and the articulation of the handles on the longitudinal spar, the first leg of the handles, which are detected when operating the handles by hand to project the length of the short second leg laterally over the longitudinal bars.

This size Distance between the two handles makes an even more comfortable Handling of the driving device at the height change below Last possible. By only 90 ° -Verschwenkung the handles required the side of the frame hardly an additional Free space to unfold the handles in case of need. Consequently The handles can also be accommodated in their position of use cramped space pivot.

In Advantageous development of the invention is further provided if at least one of the handles in its rest position, at least one of the operating levers locks. In this forced locking lock of the operating lever it is a safety feature of the driving device. This Security feature is particularly advantageous for one Actuating lever, with the lower the front end of the device relative to the rear end leaves. In a patient lying on a stretcher, with the Carriage transported is, load on the front end of the device, so on the headboard side End, about 10% to 15% more in patient weight than on the back End of the driving device. Due to the forced locking of the operating lever the paramedic becomes one causes, first in the area of this operating lever swing out arranged handle to then the operating lever to be able to serve. Due to the handles, the paramedic can possibly very high weight keep well and control.

The Invention will be described below with reference to an embodiment and with reference to the drawing closer explained. In detail, they show:

1 a side view of the resting on the front wheels and rear castors driving device,

2 a plan view of the driving device after 1 .

3 a side view of the resting on the front and rear castors driving device,

4 an enlarged view of a corner portion of the frame at its front end to illustrate the construction of the angle-hand grips, in this figure, the angle handle is shown in the folded state (rest position),

5 a side view in the direction of arrow V of 4 to illustrate the blocking of the operating lever by the handle in its rest position,

6 a plan view of one of the front corner regions of the frame with the handle (use position) and

7 a side view in the direction of arrow VII of 6 to clarify that the operating lever is freely actuated when the handle is unfolded.

The 1 and 2 show the driving device in side view and top view. The driving device has a frame 10 on, the two longitudinal spars 12 . 14 and two crossbars 16 . 18 having, by corner connectors 15 and 17 are connected. On the frame 10 there is a stretcher 20 (only in 1 shown) on the frame 10 releasably locked, which is not described and illustrated in detail. In the middle between the two longitudinal bars 12 . 14 and parallel to these runs a hollow profile strip 22 at their ends with the crossbars 16 . 18 is connected and has two adjacent, downwardly open (first and second) channels, in each of which two sliding bodies are arranged.

The driving device also has two rear legs 24 and two front legs 26 on, the hinged on the frame 10 are attached. At the free end of the rear legs 24 are swivel castors 28 appropriate. Each swivel castor 82 is about a horizontal axis 30 rotatable on a fork-shaped holder 32 attached, which in turn about a vertical pivot axis 34 rotatable on a rear leg 24 is stored. In the fork-shaped brackets 32 integrated is in each case a parking brake, from the in 1 only the actuator to be operated with the foot 36 for locking or braking the castor 28 is shown. The two rear legs 24 are over fixed joints 38 at one of the longitudinal spars 12 . 14 connecting cross strut 39 pivotally mounted and in the middle area by a cross strut 40 connected with each other. Articulated with this cross brace 40 connected are two rear ones support struts 42 whose free ends by means of an immediately below the frame 10 arranged cross strut 44 are connected. This cross strut 44 is rotatable with a slider 46 connected in the first channel of the hollow profile strip 22 arranged displaceably and can be locked in this in several positions. By loosening one in the area of the rear crossbar 16 arranged release lever 48 can be the locking of the first slider 46 be solved so that the back legs 24 around the joints 38 with longitudinal displacement of the crossbar 44 below the frame 10 can be pivoted. The cross strut 44 has a role at its two ends 50 on, resting on the undersides of the longitudinal spars 12 . 14 unroll and thus for a support of the rear legs 24 at the longitudinal spars 12 . 14 to care.

The front legs 26 are in the middle over a cross strut 52 (in 1 indicated). At the top are the front legs 26 over another cross strut 54 connected to each other, which at both ends in each case a role 56 which extends from below to the longitudinal spars 12 . 14 roll. The cross strut 54 is articulated with a likewise in the first channel of the hollow profile strip 22 longitudinally guided sliding body 57 connected. This slider 57 is on the hollow profile strip 22 releasably lockable, which is achieved by operating one in the area of the front cross member 18 located operating lever 58 he follows. By pressing the lever 58 the front end of the driving device can be changed in height, as required, for example, for adjusting the height of the driving device to the level of the lying surface of a bed. In this case, the rear end of the driving device is also activated by operating the lever 48 for unlocking the rear legs 24 height changed.

At the crossbar 52 the front legs 26 are two front struts 60 rotatably mounted, the free ends by means of another cross strut 62 connected directly below the cream 10 is arranged and rolls at both ends 64 which, from below at the longitudinal beams 12 . 14 issue. The cross strut 62 is rotatable on a slider 66 stored, in the second channel of the hollow profile strip 22 guided longitudinally displaceable and releasably lockable. The locking and release of the slider 66 done by pressing one on the rear cross member 16 arranged levers 68 ,

By loosening the lock for the slider 66 (when operating the lever 68 ) can be the front legs 26 be pivoted to fold the driving device backwards and upwards, with the front legs 26 around the rollers 56 at the upper cross strut 54 the front legs 26 rotate.

For placing the frame 10 when pushing the driving device on the stage in a patient transport vehicle are in the area of the front cross member 18 entry rollers 70 intended. These attachment rollers 70 are at both ends of a cross brace 72 rotatably mounted, with a sliding body 74 is connected, in the second channel of the hollow profile strip 22 slidably guided. The cross strut 72 has more roles 76 on, from the bottom of the longitudinal beams 12 . 14 issue. The cross strut 72 is resilient in the direction of the front cross member 18 biased, so is longitudinally displaceable on the frame 10 guided.

To push the driving device on the stage 78 the ambulance vehicle becomes the frame 10 with the attachment rollers 70 on the stage 78 placed. With unlocked locking of the front struts 60 (by pressing the lever 68 ) are the front legs 26 around the rollers 56 back to under the frame 10 swung up as soon as the front struts 60 and legs 26 against the back end of the stage 78 bump. The same is true for the rear legs 24 with unlocked rear struts 42 (by operating the lever 48 ) to under the frame 10 up as soon as they hit the back end of the stage 78 bump. In the folded state of the driving rest the rear legs 24 on the loading platform 78 on rollers 80 , which rotate on the back legs 24 in the area of the castors 28 are stored.

At the bottom of the front legs 26 are rollers 82 arranged on the front legs 26 connected brackets 84 around a horizontal axis 86 are rotatably mounted. On the bracket 84 is the turntable 88 a castor bracket 90 attached, which is forked and a swivel castor 92 rotatably holding. The brackets 84 are formed as up to the rear over the rollers extending plates. At the rear ends of these plates are the turntables 88 attached at right angles to the plates extending. The front castors 92 So, if you look down at your legs, you are between the rollers 82 and the rear castors.

Depending on the swivel position of the front legs 26 , ie the lowering of the front end of the device relative to its rear end, the driving device rests next to the rear castors 28 either only on the front wheels 82 or the front castors 92 , The pivoting of the front legs 26 for moving the driving device either over the rollers 82 or the front castors 92 done by loosening the slider 56 in the locked state, the front legs 26 against longitudinal displacement relative to the frame 10 guaranteed. With unlocked front legs 26 and locked front struts 60 can the front ren legs 26 around her crossbar 52 be rotated, with the upper ends of the front legs 26 about the roles 56 immediately below the frame 10 be guided. A pivoting of the front legs 26 leads to a lowering of the front end of the device, as a comparison of 1 and 3 shows. In these figures can be seen which (running and steering) roles of the front legs 26 the driving device as a function of the pivotal position of the front legs 26 rests. At a pivot position in which the frame 10 parallel to the ground 93 runs, is the driving device on the rollers 82 and the rear castors 28 movable ( 1 ). In a swivel position of the front legs 26 , in which the front end of the device is lowered, touching the running surfaces of the front castors 92 the ground 93 while the rollers 82 in the distance to the ground 93 are located. In both swivel positions according to the 1 and 3 are the front legs 26 against longitudinal displacements relative to the frame 10 by locking the slider 56 in the hollow profile strip 22 fixable. In order to vary the degree of lowering of the driving device at the front end, the front legs are 26 Lockable in several pivoting positions, in which only the front castors 92 the ground 93 touch. At all four legs on the castors 28 respectively. 92 resting frame can be the driving device easily turn around tight curves or in the transverse direction of the frame 10 move (sideways). In order to be able to steer the driving device both front and rear, only the frame needs 10 to be lowered at the front end, which by operating the release lever 58 for locking the front legs 26 he follows. This lowering is very easy to accomplish and in the conventional driving devices because of the given there possibility to transport a patient in shock depression with the driving device known. In that regard, so no structural changes to be made to the drive on the front legs 26 to be able to steer.

To adapt the device to different heights 78 in the different ambulance vehicles are the front legs 26 changeable in length. For this there is every front leg 26 from an upper part 26a and a longitudinally displaceably guided lower part 26b , at the end of the holder 84 is appropriate. The two upper parts 26a are over the cross struts 52 and 54 connected with each other. About one in the upper part 26a located threaded bolt with handwheel 94 can the lower part 26b against longitudinal displacements in the upper part 26a be secured. When changing the length of the front legs 26 becomes the position parallel to the ground of the frame 10 achieved by the fact that the rear support struts 42 in another than in 1 position shown on the frame 10 be arrested. But this is the pivoting position of the rear legs 24 with horizontally aligned frame 10 another. Be the front legs 26 at changed length now in the swivel position according to 3 pivoted, the vertical pivot axis runs 96 not perpendicular to the ground. However, this is because of the caster characteristic of the front caster 92 (whose vertical pivot axis 96 does not cut the horizontal axis of rotation 98 ) disadvantageous.

The vertical orientation of the pivot axis 96 to the floor by pivoting the front legs 26 at different lengths can be achieved in the driving device in that the front legs 26 in several swivel positions on the frame 10 can be locked, in which only the front castors the ground 93 touch. In addition, the relative position of the fork-shaped holder 90 for a castor 92 and the holder 84 adjustable.

As in 2 It can be seen, the rollers have 82 and the front castors 92 the same track width. Like the rollers 82 and the rear castors 28 are also the front castors 92 with raised front and rear legs 26 . 24 to both (outside) sides of the frame 10 , Further, the front castors are 92 at such a distance to the rollers 82 arranged that the castors are located directly below the stretcher with folded driving device.

As in the 1 and 2 indicated, the frame points 10 of the driving device at its front end two handles 100 on the vertical to the frame 10 spanned plane extending pivot axis 102 at the corner connecting elements 17 are stored. Every move 100 is formed as an L-shaped angle handle and has a first short leg 104 and an adjoining second leg 106 on that with a handle 108 is provided. At the end of the short thigh 104 is every move 100 pivotable about the pivot axis 102 stored.

In the resting position lie both handles 100 laterally on the corner connecting element 17 or the crossbar 18 at. these rest positions are in 4 to recognize the space-saving placement of the handles 100 in their rest positions shows. Furthermore, based on 5 to recognize how at least one of the two handles 100 at the front end of the frame 10 arranged actuating lever 58 locks when the handle in question is in its rest position. The short thigh 104 of the handle concerned 100 lies from below at the operating end 110 so that this end of operation 110 can not be pressed. This can be when befindlichem in the rest position said handle 100 the front Do not lower or adjust the height of the end of the driving equipment as the operating lever does 58 must be able to serve what, like the 4 and 5 show, is not possible when the handle 100 is in its rest position.

6 shows the two handles 100 in its use position after pivoting by only 90 ° from the rest position out. The distance between the two grips 108 the two handles 100 is greater than the width of the frame 10 (Distance between his longitudinal spars 12 . 14 ). A paramedic, who must hold the front end of the device under load, can now between the two handles 100 and carry the weight so to speak laterally and hold. The increased distance of the handles 100 in their use positions, it also allows paramedics of stronger stature, between the handles 100 to go.

The invention has been described above with reference to the example that the fold-out angle-shaped handles are arranged at the front end of the driving device. Alternatively or in addition, it is also possible and advantageous when deployable angle-shaped handles are arranged at the rear end of the driving device. There, they can be ergonomically advantageous in loading and unloading of the vehicle with the driving device including, if necessary, stretcher and patient insofar as they facilitate the handling of the driving device. When two angular handgrips are arranged at the rear end of the driving device, each handle in its folded position locks one of the actuating levers 48 respectively. 68 that for this purpose similar to the operating lever 58 are formed at the front end of the driving device.

Claims (3)

Driving device for a stretcher or stretcher, with - a frame ( 10 ), the longitudinal and transverse spars ( 12 . 14 . 16 . 18 ), which by Eckverbindungselemente ( 15 . 17 ) are interconnected, - front and rear, on the frame ( 10 ) pivotally mounted legs ( 24 . 26 ) with running or steering rollers ( 28 ), - operating levers ( 48 . 58 . 68 ) for locking and unlocking the front and rear legs ( 24 . 26 ) and - fold-out handles ( 100 ) at least at one end of the frame ( 10 ) are mounted on this, wherein each handle ( 100 ) in a resting position on the frame ( 10 ) and in a use position over the end of the frame ( 10 ), characterized in that - each handle ( 100 ) Is L-shaped and one hand detectable long first leg ( 106 ) and a substantially perpendicular to this extending short second leg ( 104 ) and - that each handle ( 100 ) at the free end of its second leg ( 104 ) about a substantially perpendicular to the longitudinal and transverse spars ( 12 . 14 . 16 . 18 ) running pivot axis ( 102 ) on the frame ( 10 ) in the region of a corner connecting element ( 15 . 17 ) is pivotally mounted, - wherein each handle ( 100 ) in its rest position from the pivot axis ( 102 ) along the corner connecting element ( 15 . 17 ) and the cross member ( 16 . 18 ) and in the use position of the pivot axis ( 102 ) with its second leg ( 104 ) transverse to the longitudinal spar ( 12 . 14 ) and with his first leg ( 106 ) parallel to the longitudinal spar ( 12 . 14 ) and over the crossbar ( 16 . 18 ) extends. Driving device according to claim 1, characterized in that each handle ( 100 ) in its rest position from the pivot axis ( 102 ) from within his second thigh ( 104 ) laterally along and around the corner connecting element ( 15 . 17 ) extends around. Driving device according to claim 1 or 2, characterized in that at least one of the actuating levers ( 58 ) in the region of a corner connecting element ( 15 . 17 ) and that this operating lever ( 58 ) in the rest position of the in the region of the corner connecting element ( 15 . 17 ) arranged handle ( 100 ) locked by this and in the use position of the handle ( 100 ) is freely operable.