DE1186579B - Stretcher platform for ambulances - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 61g

German class: 30 e - 3

Number: 1186 579

File number: L 42943IX d / 30 e

Filing date: September 12, 1962

Opening day: February 4, 1965

The invention relates to a stretcher platform for ambulances with at its ends, in particular cantilevered guide rails protruding forward over a seating area.

Although there are carrier frames in vehicles known in which the support members for receiving the Stretcher stretches are resiliently mounted on frame parts fixedly arranged on the vehicle. Here is the stretcher as a whole is carried as a spring. However, such a design is relatively expensive and usually - at least for vehicles with good suspension - not necessary either. In general rather, a fixed arrangement of the stretcher platform on the vehicle is sufficient, e.g. B. on an elevated Vehicle floor, as far as this is possible with regard to the space available.

However, it has been shown that when using guide rails that are not on their whole Length are supported on the cantilevered ends of these guide rails while driving of the car from the engine through the floor area of the vehicle, especially short-wave vibrations Vibrations, which are transmitted, cause very uncomfortable nuisance to the sick being able to lead.

In order to eliminate these vibrations, according to the invention, the cantilevered ends of the guide The rails are spring-supported or braced against the rest of the vehicle. This means that the Vibrations from the bottom of the vehicle via the guide rails into the stretcher heavily damped.

Preferably, the cantilevered rail ends are pretensioned to brace them resilient support elements are provided, the pretensioning by one or more tensioning elements is maintained, which increases the tension but does not decrease it allow.

The invention is particularly important for those stretcher platforms in which the cantilevered Rail ends can be folded up or around a transverse axis, in order to be in the position of use as required to be brought or the space in front of the stretcher platform for the use of a front Release the seat, as the rail ends are particularly susceptible to vibration in this case are. The rail ends are preferably in this case in another associated guide rail aligned position held by stops.

As a tensioning element, it is a simple and functional stretcher platform for ambulances

Applicant:

Binz & Co., Lorch (Württ.)

moderately a spring-loaded locking lever is provided which is free with the one or more supporting rail ends cooperates by means of a locking pin engaging in a locking recess. The locking can take place automatically when the rail ends are folded down.

¹ S hollow rubber springs are advantageously used as resilient support elements; however, helical springs or other suitable springs, in particular springs arranged in a similar manner, can also be used in their place. The support suspension is advantageously arranged at an angle to the direction of oscillation of the cantilever rail ends for the most favorable absorption of the force and is set up so that its preload can be adjusted to achieve a particularly quiet position of the stretcher.

To further improve driving comfort, the support suspension can have a shock absorber in parallel be switched. This can simultaneously be designed as a locking lever and, if necessary, as a tensioning element be.

In the F i g. 1 to 4 are shown two exemplary embodiments of the invention, namely FIG

F i g. 1 is a perspective illustration of one embodiment for bracing the freely supporting front end of a stretcher platform,

F i g. 2 the side view of this embodiment,

F i g. 3 one of the F i g. 1 corresponding perspective view of a second embodiment of the invention and

F i g. 4 shows a side view of the embodiment according to FIG. 3,

In FIGS. 2 and 4, 10 is the bottom part an ambulance referred to, wherein the rear raised bottom part 11, which is z. B. to extends rear vehicle door, bridges the rear vehicle axle. In the depression in front of it 12, a seat 13 is arranged, which is a driver's seat, an attendant seat or even one behind them Seats arranged further seat can be and a backrest that can be pivoted down about the joint 14 15 has.

The stretcher platform 16 has two cross-sectionally U-shaped longitudinal support rails 17 and 18, the front ends 19 and 20 around cross joints 21 and

509 507/4

Claims (1)

3 4 22 can still move a little downwards with the main recess 31 fixed to the vehicle, the longitudinal support rails 17 and 18 divide in such a way that they are connected by the knee joints 21, 22 or toggle-like so that their rear end is affected by the elasticity of the cantilevered rail. Front edges 21 b, 22 b is permitted approximately stretched ends of use, and thereby a certain amount of the rails would be supported on the front edge 5 desired springs of the rail ends within 21 a, 22 a of the main rail parts. This enables an increased preload range.
Rail ends 19 and 20 are connected to one another by means of a stop on the bracket 27, a cross member 23 can be connected to form a rigid unit in order to keep the locking lever 28 in a position when the locking lever 28 is released and are used to accommodate the front feet - or rolling of a stretcher 24. At 10 it can deviate slightly from the locking position, so disuse in the direction of arrow χ in the positions 19 'that when pivoting down again the front or 20' are folded around the front rail ends 19, 20 of the locking pin 34 meets the space above the seat 13 for erecting the back inclined surface 32 and to release it by resilient backrest 15. press the locking lever 28 clockwise In the embodiment according to FIGS. 1 and 2, the locking pin34 automatically engages with 15 causes the cross member 23 in a central region of the recess 31. front rail ends 19, 20 a star shape. In the embodiment according to FIG. 3 and 4 is Approach 25 connected, which is on a as the stamp-like approach 25 by means of a through the Support suspension serving hollow rubber spring 26 from screws 25 α adjustable adjusting spindle 25 b with supports, which in turn within the front recess 20 with respect to the front rail ends 19, 20 axially Fung 12 arranged behind the backrest 15 in an inclined position adjustable. The hollow rubber spring 26 supported on a bracket 27 by means of the screws 27 a via a tubular bracket 26 a is consolidated. The stem-shaped extension 25 rests here on a base plate fastened to the vehicle floor loosely on the Hohlgutnmifeder 26 and is removed from the 276. Folding around the front rail ends in arrow 25 In contrast to the embodiment according to FIG. 1 direction χ brought into position 25 '. and 2, in which a rigid locking lever 28 is provided To brace the front rail ends is on, in the case of FIG. 3 and 4 as a locking lever The support spring is provided by a latching lever28, which is provided by a shock absorber35, e.g. as a telescopic joint 29 is hinged to the bracket 27 and is formed on the shock absorber and one of the pipes a return spring 30 a restoring torque 30-shaped part 35 α by means of a joint 36 on the (counterclockwise according to FIG. 1) base plate 27 & is pivotably mounted and its is exercised around the axis of leakage 29. The upper other, partly 35 a with damping effect At the end of the locking lever, a locking recess 31 has an axially displaceable tubular part 356 on, which carries a hook-shaped locking pin 37 on the outside, which is inserted into a recess 38 End 33 35 having an inclined or rounded portion 32 on the cross member 23 of the rail ends 19, 20 is limited. The recess 31 acts here, the welded bracket 39 can snap into place. Appearance a locking pin 34, which at the transverse end vibrations at the rail ends 19, 20 Carriers 23 of the front foldable rails are hereby connected by the support spring 26 19 and 2Θ is arranged. . dung damped with the shock absorber 35, the In the use 40 degree of damping shown in Fig. 1 and 2 by adjusting the stem position are the rail ends 19, 20 together with pel-shaped extension 25 relative to the rail end Cross member 23 folded down to the front. The ends are adjustable. The arrangement is such that the shock absorber 35 is preferably one with one Moment of folding down the adjustable throttle effect of working fluid fronts Rail ends in which the punch-like 45 shock absorber, but can also be a pneumatic one Approach 25 rests on the upper end of the support spring 26 or an impact acting in some other suitable manner, still a game between the damper joints be provided. 21 and 22 adjacent end edges 21a, 21 & or. If the stretcher platform is not used, the 22a, 22b of the rail parts is such that a front cantilever rail ends 19, 20 again When the front edges are placed against one another, they are only folded backwards 50, with the stem- can thereby be achieved that the rail pel-like extension 25 and the bracket 39 in the positions ends 19, 20 reach against the action of the support spring 26 25 'and 39'. The shock absorber 35 can is depressed even further. In such a case, it is folded into position 35 'around its joint 36 depressed position, the z. B. with the on. The re-erection of the shock absorber are the front edges 21 α, 21 ό and 22 α, 22 b to 55 for the case of use can without difficulty coincides, or moreover, a certain one occurs, since it is caused by the generally Bracing of the rail ends, the side vehicle door is easily accessible. the front rail electrodes 19, 20 are arranged by the locking mechanism. lever 28 held by means of the output. However, this can also be done in this case Recognition 31 over the locking pin 34 engages. The 60 of the shock absorbers in an upright position resiliently against Support spring 26 is in this case pressed under a corresponding stop, so that when ZuVenspreloading. The return spring 30 prevents the front rail ends from folding back into the area In addition, the locking pin 34 is disengaged This bracing of the front rail locking recess 38 takes place automatically,
ends 19, 20 ensures that vibrations 65 the cantilever rail ends excluded claims: will. But the arrangement is made in such a way that 1. Stretcher platform for ambulances is also on that the locking pin 34 within the locking from their ends, in particular to the front via a Cantilevered guide rails protruding from the seating area, characterized in that that the cantilevered ends (19, 20) of the guide rails (17, 18) are resiliently supported against the rest of the vehicle or s are excited. 2. Stretcher platform according to claim 1, characterized in that for bracing the cantilevered Rail ends (19, 20) preloaded support springs (26) are provided. 3. Stretcher platform according to claim 1 or 2, characterized in that the cantilevered Rail ends (19, 20) counteract the action of the support springs by one or more tensioning elements (28) (26) are kept under tension, in particular such that the tensioning elements are indeed a Allow enlargement, but not decrease in tension. 4. Stretcher platform according to one of claims 1 to 3, characterized in that the cantilevered Rail ends (19, 20) can be folded up or around a transverse axis (joints 21, 22) are. 5. Stretcher platform according to spoke 4, characterized in that the pivoting stroke of the cantilevered rail ends (19, 20) in a position of the rail ends aligned with the remaining guide rail (17, 18) is limited by stops, for example by the adjacent end edges (21a, 21 b, 22 a, 22 b) of the guide rails (17, 18) or the rail ends (19, 20) are formed. 6. Stretcher platform according to one of claims 3 to 5, characterized in that as a clamping element a spring-action latching lever (28) is provided which is connected to the or the cantilevered rail ends (19, 20) by means of a locking recess (31) engaging Latching pin (34) cooperates. 7. Stretcher platform according to claim 6, characterized by such an arrangement of the locking lever (28) that when folding down the cantilevered rail ends (19, 20) the lever comes automatically into locking engagement by resilient pushing back by means of the locking pin (34). 8. Stretcher platform according to one of claims 1 to 7, characterized in that the resilient Support of the cantilever rail ends (19, 20) one or more hollow rubber springs (26) are provided. 9. Stretcher platform according to one of claims 2 to 8, characterized in that the for resilient support of the cantilevered rail ends serving support springs (26) upright are arranged and the rail ends or the cantilever platform end one or have several stamp-like approaches (25), which are in the position of use on the spring elements (26). 10. Stretcher platform according to claim 9, characterized in that the axes of the support springs (26) or lugs (25) obliquely downwards against the toggle joint (21, 22) of the guide rails (19, 20) or the clamping cross-section of the cantilever rail ends (19, 20) containing perpendicular transverse plane are directed. 11. Stretcher platform according to one of claims 2 to 10, characterized in that the bias the support springs (26) is adjustable. 12. Stretcher platform according to one of claims 9 to 11, characterized in that the length of the or the punch-like lugs (25) is preferably adjustable by means of screw thread (25 b). 13. Stretcher platform according to one of claims 1 to 12, characterized in that the support suspension (25, 26) a shock absorber (35) is connected in parallel. 14. Stretcher platform according to claim 13, characterized in that the shock absorber at the same time is designed as a latching lever - optionally also as a tensioning element at the same time. 15. Stretcher platform according to one of claims 1 to 14, characterized in that the support suspension (25, 26) arranged behind the pivotable backrest (15) of a front seat (13) is and supports the cantilever rail ends (19, 20) in their central part. Considered publications:
British Patent No. 421119. 1 sheet of drawings 509 507/4 1.65 © Bundesdruckerei Berlin