DK176376B1 - Lifting device for flat lift - Google Patents

Description

in DK 176376 B1

FIELD OF THE INVENTION

The present invention relates to a planar lifting device comprising a sail suspended in a lifting bracket which establishes a plurality of separate suspension points in use at edge regions of the sail so that it is supported in a substantially horizontal position in use. level.

BACKGROUND OF THE INVENTION 10 Lifting device for flat lifting is preferably known from hospitals and institutions. However, it is also known from ambulances where injured persons may be needed.

The known person-raised must support person over virtually the entire length of the person 15 and must at the same time provide suspension points which are spaced apart so that they are approximately at edge areas of the sail. The distance between these suspension points must be at least equal to the width of an adult to keep the sail stretched as far as possible. The support points thus aim to keep the sail clamped in points which are in a substantially horizontal plane so that a 20 person lying in sailed, not falling out during lifting and transport.

Generally, it will be necessary for the sail to be released from the support bracket itself so that it can be placed under a person to be lifted. When the person is placed on the sail, the sail is then attached to the lifting points of the hoist.

25

The known lifting devices will be very space consuming as they must provide a structure in which an adult person may be located. They are therefore space consuming when put away and not in use.

In an attempt to reduce the space requirement for the lifting device when not in use, it has been proposed to provide a lifting bar with a longitudinal beam and cross members that can be pushed together. However, this will still be an unmanageable space-intensive lifting device that requires a space for storage which is at least equal to the length of the lifting device. Furthermore, these lifters are disadvantageous as their straps for the sail will have an inclined downward direction so that a person supported in a sail will push the sail downwards so that the suspension straps 5 squeeze against the person's sides. This is undesirable in many use situations. Furthermore, the support structure will make it difficult for auxiliary personnel, for example doctors and nurses to work with the person, for example with oxygen masks, resuscitation equipment and the like, as access to the person is very limited.

10

Also known are rigid or rigid stretcher-like bearings suspended in a central lifting bracket. However, such lifting devices will also have a space requirement corresponding to the length of the lifting device when it is to be stored. Furthermore, the use of a central hoop will place great demands on the correct positioning of the center of gravity of the person on the lifting device to avoid the risk of sailing tilt and the person falling out of the lifting device.

The object of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lifting device for plane 20 lifting of the type mentioned above, in which the above disadvantages are overcome, the lifting device in use providing a secure support with good access to a person in the lifting device, which lifting device can simultaneously be folded for to take up some space when not in use.

Description of the Invention

This is achieved according to the present invention with a lifting device of the type mentioned initially, which is characterized in that the lifting bar is made of a central lifting beam extending longitudinally of the sail and supporting two mutually pivotable frame parts which are pivotable at one end. secured to the central lifting beam and which can oscillate between a first outer position where the two frame members are positioned close to each other and a second outer position where the two frame members are pivoted away from each other that locking means are provided which can lock the frame members in DK 176376 B1 3 at least in the second outer position, and that each frame part at their end farthest from the central lifting beam comprises a telescopable bar to which the sail is mounted.

Thus, in the lifting device, it is possible to collapse the two frame parts so that they take up substantially less space than the required width for a bearing, and furthermore it is possible to move the telescoping rails together so that the lifting device is stored in a space which is substantially shorter than the length of the lifting device when in use.

In practice, it has been found possible to fold / retract the lifting device according to the present invention, so that in a collapsed storage and transport situation it has a volume corresponding to a large suitcase.

It is preferred to manufacture the lifting device such that each frame member is formed by a U-shaped frame, the bottom of the U-shaped frame being comprised of a central wall portion having a telescopable end portion which is extendable at each end of the central wall portion. Such an embodiment will have a frame portion located at a central portion of the lifting device, and the central portion of each vane will preferably be the largest vane from which the telescopable end portions of the vanes are projected. The vanes 20 can be manufactured as tubular ladders or have other suitable shapes. Since the U-shaped frame and thus also the central lifting beam are at the middle section of a lifting device, it will be easy to get the subject's center of gravity within the U-shaped frame, so that there is no risk of the sail tilting. Since above a person lying on the sail will simply be the branches of the U-25 shaped frame and the central lifting beam, it will be easy for auxiliary personnel to reach the person lying on the bearing. Thus, the upper body and legs will be outside the U-shaped frame, and you can work with resuscitation equipment, oxygen devices, drops and the like without hindrance. In order to ensure good space over the user, it is preferred that the branches of the U-shaped frame are bent or curved so that the outermost latches are furthest from the lifting beam and closest to the bottom of the U-shaped frame in use with the frame parts pivoted to said second outer position. stands largely vertical. Thus, since the outer latch has a greater or lesser length, even at the outer sides of the sail, a distance between the sail and the inclined latch portions of the U-shaped frame is provided. This ensures that the lifting device can be used for large persons and that in such situations there can be no risk of the person being pinched.

To further ensure a horizontal transport, it is preferred that the lifting beam is provided with a lifting means, preferably a lifting eye which is displaceable in the longitudinal direction of the lifting beam. Such a lifting means, which may be an eye hook or the like, which is attached to the crane on a fixed mounted or mobile lifting device, thus enables an adjustment of the center of gravity. This can be done, for example, by the lifting eye being inside the lifting beam, so that the lifting beam serves as a displaceable backdrop and the lifting eye 10 is fastened by screwing with an operating handle where the friction ensures a position.

Alternatively, the lifting eye may be displaced in a backdrop where there are recesses where the lifting eye will be placed in use. This does not need to rely on a locking eye with a friction screw.

According to a preferred embodiment, a lifting device according to the invention will be characterized in that the lifting bracket and the frame parts have a length from 750 to 1000 mm, preferably from 800 to 850 mm and that the rails in the extended state are from 1750 to 2100 mm, preferably from 1800 to 1900 mm.

Thus, in a practical example, a lifting bar will have an extended length of 1880 mm and a transverse dimension between the two outer frame members in said second outer position of 975 mm. By producing the branches of the U-shaped frame with a curvature, a height can be obtained between the plane where the beams are located and the central lifting beam, which is approximately 530 mm. In the collapsed / retracted state, such a lifting device will have a total length of about 840 mm, a width of about 285 mm and a height of about 755 mm. This causes the space requirement for storage to be very limited and furthermore it will be easy to handle the lifting device when not in use. This may be of particular interest in ambulance use.

30 As mentioned above, the lifting device will have to be locked when the frame members are in the second outer position or the use position. Such locking may be effected by means of locking means in the form of spring-actuated locking pins which are displaceable in the branches of the U-shaped frame for engagement with bores in the lifting beam. Thus, locking pins may be provided which are pressed against a bore or recess by a lifting member in a lifting beam by DK-176376 B1. Such a locking pin may simply be provided with a lateral control handle extending through a slot in the branches of the U-shaped frame. A user may thereby influence the control lever for displacement through the slot to bring the locking pin out of engagement with the bore in the lifting beam.

5

As the locking pins engage with the bores while a person is in the sail, due to gravity, there will be no possibility / risk of accidental unlocking.

It is also preferred that the lifting device may be locked in the folded state and in this situation there will also be bores or recesses with which the locking pins can engage in the folded state.

In order to provide the sail with maximum rigidity to ensure a substantially horizontal bearing for the 15 person lying on the sail, the sail can be made with a longitudinal channel at each of its longitudinal sides so that a rigid rod can be accommodated in these channels. Alternatively, the sail may be made double layer so that a channel is formed between the two layers into which a rigid plate can be accommodated. Thus, either the rigid rods or the plate can be used when the lifting device is to be used for a task where it is particularly important that the injured person is lying on a flat bed. If there are less requirements for flatness of the bearing, the rigid rods or the rigid plate may not be used.

The sail is mounted on the hangers with 3-5 connecting straps. These are preferably provided with self-tensioning buckles so that the sail can be tightened to form as flat a bed as possible. Alternatively, along the longitudinal edges of the sail, eyes may be provided which cooperate with hook-shaped members on the rails. However, the connecting straps will be a relatively simple and quick way. When the sail is not in use, it will be easily dismantled and rolled up. There may also be straps based on velcro-30 bands.

DK 176376 B1 6 Drawing description

The invention will now be described in more detail with reference to the accompanying drawing, in which: FIG. 1 shows a lifting device according to the present invention in a situation where it is ready for use; FIG. Fig. 2 shows a lifting device according to the invention with dismantled sail and in the collapsed / stowed condition for storage and transport; 3 & 4 show a schematic side view and end view, respectively, of the lifting device, 10 without sail, in a situation ready for use; 5 & 6 show images similar to FIG. 3 and 4 of the lifting device in the collapsed and retracted state; and FIGS. 7 shows a detail of the central lifting beam of the lifting device according to the invention.

15

DETAILED DESCRIPTION OF THE INVENTION In the following, identical and corresponding elements will be designated by the same reference numerals. No detailed explanation is provided for all figures.

20 In Fig. 1, a lifting device 1 is shown with a sail 2, which is clamped in a lifting bracket 3. The lifting bracket 3 establishes suspension points 4 which are at edge regions of the sail 2. The support consists of straps 6, which are provided at their ends with a bracket 7 for mounting on racks 8. The rails 8 are telescopable, consisting of a central 25 riser part 9 and two telescopable end portions 10. The rails form part of two mutually pivotable U-shaped frame parts 11 pivotally mounted on a central lifting beam. 12th

The U-shaped frame members comprise, in addition to the central vane 9, two branches in the form of bent tubes 13, which at their end portions 14 close to the central vane 9 are oriented substantially vertically when the lifting device is in use. In Fig. 1, the lifting device is thus seen in a situation of use where the two frame parts 11 are pivoted to an outer position, where the two frame parts are pivoted away from each other and locked, with a spring locking pin engaging a recess in the central lifting beam 12. The spring-loaded locking pin is located inside the pipe 13 and can be operated via an operating handle 15 (see also Fig. 7), which extends through a slot 16 in the pipe 13. The operating handle 15 can thus be displaced in direction of arrow 17 to release the locking pin.

FIG. 2 shows the lifting device in a state where the frame members 11 are pivoted to another outer position where they are located close to each other and with the telescopable end parts 10 inserted in the central wall part 9.1 this situation the locking pin will also engage with a drilling in the central lifting beam 12, so that the frame parts 11 of the lifting device are locked in the folded state.

Figure 3 shows a schematic side view of the lifting device 1 with the levers in a deferred position. In this situation, the total length 18 of the cradles in the embodiment shown will be 1800mm.

Figure 4 shows an end view of the lifting device shown in Figure 3, where it is seen that the 15 frame parts 11 are pivoted to their locked outer position away from each other. In this situation, the width is 19 975 mm. Furthermore, between a plane 20 in which the vanes 8 are located and the central lifting beam 12 will be a height 21 which will be 532 mm.

Figure 5 shows a schematic view similar to Figure 3, but with the lifting device in the folded and collapsed state. In this situation, the central wall portion 9 will have a length 22 of 837 mm.

Figure 6 shows an end view of the folded and pushed lifting device shown in Figure 5. The folded lifting device will have a total width 23 of 285 25 mm. and a height 24 of 755 mm.

As can be seen from this, the collapsed / retracted lifting device will thus have a target which corresponds essentially to a large suitcase. The sail 1, which is removed by the folding, can be placed in the space 25 formed between the two frame members 11.

The lifting device may be provided with a transport handle 26, as illustrated in Figures 2 and 5.

As can be seen most clearly in Figure 7, the lifting device is provided with a lifting eye 27. The lifting eye 27 is slidably placed in the central lifting beam 12, the lifting eye 27 extending out of slots 28 being connected to an inner slider. (not shown). The inner slider is provided with a thread which engages a control handle 29 which can be rotated according to the arrows 30, so that the slider is pressed against the inside of the central lifting beam 12 and for frictional engagement holding the lifting eye in a certain position. . By turning the control lever 29 in the opposite direction, a release will be made so that it becomes possible to adjust the position of the lifting eye taking into account the center of gravity of the person in the lifting device.

10

In addition to the frictional engagement, a safety pin 31 may be provided which enters bores in the slide so that the lifting eye 27 is locked in a position relative to the central lifting beam 12.

As can be seen from the detail image in Figure 1, the strap 6 is provided at one end with a buckle 7 comprising a hook-shaped part which can be inserted over the strap 6. The hook-shaped part can span around the strap 6 and thus act as a self-tensioning buckle. Alternatively, other self-tensioning straps may be used which allow the sling 1 to be clamped so that it will be in the plane 20, 20 formed by the bars 8. This allows the straps to be tensioned after a person has been located in the lifting device. Alternatively, the length of the straps may be adjusted so that the sail 1 will be tightly tensioned when the two frame parts 11 are pivoted and locked in the outer position illustrated in Figure 1.

The invention is described above with reference to a specific embodiment, but the invention is not limited thereto. Within the scope of the invention as defined in the following claims, the lifting device may be embodied in other ways. Thus, for example, it will be possible to change the shapes and the bending of the frame members 11, and it will also be possible to change the profiles used for the construction of the lift beam, the frame members and the bars.

Claims (10)

A planar lifting device (1) comprising a sail (2) suspended in a lifting bracket (3) which establishes a plurality of separate suspension points (4) in use at edge regions of the sail so that it is in use is supported in a substantially horizontal plane 5 (20), characterized in that the lifting bracket (3) is made of a central lifting beam (12) extending in the longitudinal direction of the sail and supporting two mutually pivoting frame parts (11) which at their one end is pivotally secured to the central lifting beam (12) and which can pivot between a first outer position where the two frame members (11) are positioned close to each other and a second outer position where the two frame members (11) 10 are pivoted away from each other that locking means are provided which can lock the frame members at least in the second outer position and that each frame member (11) at their end furthest from the central lifting beam (12) comprises a telescopable bar (8) to which the sail e r mounted. 15 Lifting device according to claim 1, characterized in that each frame part (11) is formed of a U-shaped frame, the bottom of the U-shaped frame consisting of a central wall part (9) having a telescopable end part (10). as an extendable portion, at each end of the central wall portion (9). 20 Lifting device according to claim 2, characterized in that the branches (13) of the U-shaped frame are bent or curved such that the outermost latch parts (14) are farthest from the lifting beam (12) and almost at the bottom of the U-shaped frame in use with the frame members. (11) the turn to said second outer position is substantially vertical. 25 Lifting device according to any of the preceding claims, characterized in that the locking means are provided as spring-actuated locking pins which are displaceable in the branches (13) of the U-shaped frame for engagement with bores in the lifting beam (12). Lifting device according to any one of the preceding claims, characterized in that the sail (2) has at each of its longitudinal sides a longitudinal channel in which a rigid rod can be accommodated. DK 176376 B1 10 Lifting device according to any one of claims 1 to 4, characterized in that the sail (2) is a double layer and a channel is formed between the two layers in which a rigid plate can be accommodated. 5 Lifting device according to any one of the preceding claims, characterized in that the sail light (2) is mounted on the racks (8) with 3 to 5 connecting straps (6). Lifting device according to claim 7, characterized in that the connecting straps (6) are provided with self-tensioning tensioners (7), in order for the sail (2) to form as flat bed 10 as possible. Lifting device according to any one of the preceding claims, characterized in that the lifting bracket (3) and the frame parts (11) have a length from 750 to 1000 mm, preferably from 800 to 850 mm, and that the hinges (8) have length from 1750 to 2100 15 mm, preferably from 1800 to 1900 mm. Lifting device according to any one of the preceding claims, characterized in that the lifting beam (12) is provided with a lifting means, preferably a lifting eye (27) which is displaceable in the longitudinal direction of the lifting beam (12).