EP4281027A1 - Civiere pliable amelioree - Google Patents
Civiere pliable amelioreeInfo
- Publication number
- EP4281027A1 EP4281027A1 EP22705855.9A EP22705855A EP4281027A1 EP 4281027 A1 EP4281027 A1 EP 4281027A1 EP 22705855 A EP22705855 A EP 22705855A EP 4281027 A1 EP4281027 A1 EP 4281027A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crosspiece
- stretcher
- end element
- longitudinal direction
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/013—Stretchers foldable or collapsible
Definitions
- the present invention relates to the general technical field of stretchers, and more particularly that of stretchers intended to be folded up (and in particular disassembled), when not in use in order to have a reduced size.
- the present invention relates more specifically to a stretcher comprising a first and a second support arm to which and between which is intended to be attached a means for receiving an individual, said first arm comprising at least a first and a second end element , as well as at least a first cable attached to said first and second end elements and intended to be stretched between the latter in a first longitudinal direction.
- Stretchers are commonly used for the evacuation of injured people, usually in a seated or lying position. They generally comprise two parallel arms linked to a person receiving support, or even a tubular frame between which the receiving support is fixed. More particularly, so-called foldable, that is to say removable, stretchers make it possible to reduce the size of these devices, and thus have the advantage of being able to be transported more easily, in particular within already cluttered vehicles (helicopters, ground rescue vehicles, ships, military vehicles, etc.) or by the users themselves (e.g. mountain rescuers, military, paratroopers, etc.).
- a foldable stretcher comprising a kit of hollow tube sections, the assembly of which makes it possible to obtain a stretcher structure with two arms.
- the assembly of the tube sections is in particular made by interlocking the latter into each other, one after the other.
- a tensioning device which comprises a lever fixed to one end of the cable.
- the lever positioned at one end of the arm, is swung perpendicular to the arm and attached to the similar lever on the other arm.
- the other end of the cable is attached to a section of tube located at the opposite end of the arm.
- these known foldable stretchers have a size and a weight which are, although already reduced, still perfectible, that is to say that it is desired to increase the compactness of these stretchers while maintaining a reduced weight , or even reducing the latter.
- foldable stretchers having the smallest possible dimensions, when not in use, in order to be able to easily transport said stretchers everywhere, whether in a vehicle or by an individual (rescuer at sea or in the mountains for example) .
- the procedure for tensioning the cables implemented in these known stretchers may be considered by some users to be relatively complex or tedious, without however guaranteeing the reproduction at each stretcher assembly of the same level of tension of the cables.
- the objects assigned to the present invention therefore aim to remedy the various drawbacks listed above and to propose a new stretcher which, while being particularly robust, reliable and durable, has a reduced size, in the folded or disassembled configuration in particular, while being particularly simple and practical to use.
- Another object of the invention aims to provide a new stretcher whose assembly and disassembly are both quick and easy.
- Another object of the invention aims to provide a new stretcher intended to receive a person in optimal safety and comfort conditions, both for the individual on board the stretcher and for any operators or rescuers transporting said stretcher.
- Another object of the invention is to provide a new stretcher whose structure provides it, in particular in the mounted configuration, with optimal solidity and rigidity.
- Another object of the invention aims to provide a new stretcher which requires only minimal maintenance.
- Another object of the invention aims to provide a new stretcher whose weight is reduced.
- Another object of the invention aims to provide a new stretcher whose manufacture is simple and carried out at controlled cost.
- Another object of the invention aims to provide a new stretcher which is light and compact enough to be able to be easily embarked by a wide variety of vehicles and individuals.
- Another object of the invention aims to provide a new stretcher whose structure is simple and comprises only a limited number of separate parts. Another object of the invention aims to provide a new stretcher whose structure is durable and particularly resistant to wear.
- a stretcher comprising a first and a second support arm to which and between which is intended to be attached a means for receiving an individual, for example a canvas structure , said first arm comprising at least a first and a second end element, as well as at least a first cable attached to said first and second end elements and intended to be stretched between the latter in a first longitudinal direction
- said stretcher being characterized in that it comprises at least a first crosspiece connected to said first and second arms and positioned at least partly between the latter, said first crosspiece being designed to evolve between a retracted configuration and a deployed configuration in which said first crosspiece maintains said first and second arms farther apart than in said retracted configuration, said first crosspiece cooperating at least with said first end element so that, in the retracted configuration, said first end element and first crosspiece are linked together by a mechanical connection allowing at least one degree of freedom in translation in said first longitudinal direction, and for that in deployed configuration said mechanical connection inhibits at least said degree of freedom in translation in
- FIG. 1 illustrates schematically, in a perspective view from above, a stretcher according to the invention according to a particular embodiment, the stretcher being assembled and ready to be used.
- FIG. 2 illustrates schematically, in a perspective view from above, the stretcher of Figure 1, the crosspieces still being in the deployed configuration, but where certain elements such as the means for receiving an individual and collars of tightening are not shown.
- FIG. 3 schematically illustrates, in a perspective view from below, the stretcher of Figure 2.
- FIG. 4 illustrates schematically, in a perspective view from above, the stretcher of Figure 2, with the difference that several sections have been hidden, thus revealing the cables.
- FIG. 5 illustrates schematically, in a perspective view, the stretcher of Figure 2, completely folded, and therefore disassembled, the crosspieces therefore being in the retracted (maximum) configuration.
- FIG. 6 illustrates schematically, in a perspective view from below, the stretcher of Figure 5 at the start of assembly, the crosspieces still being in the retracted configuration (not maximum).
- FIG. 7 schematically illustrates, in a perspective view, an enlargement of a detail of the constituent elements of the stretcher of Figure 6, during assembly.
- FIG. 8 illustrates, in a perspective view from above, an enlargement of a detail of the constituent elements of the stretcher of figure 5.
- Figure 9 illustrates, in a perspective view from below, the constituent elements illustrated in Figure 8.
- FIG. 10 illustrates, in a top view, the constituent elements shown in Figure 8, with the difference that the sections and the clamps have been made partly transparent.
- FIG. 11 illustrates, in a top view, part of the constituent elements illustrated in Figure 10, the transparent elements in the latter figure no longer being shown.
- Figure 12 illustrates, in a side perspective view, the constituent elements illustrated in Figure 11.
- FIG. 13 illustrates, in a perspective view from above, an enlargement of a detail of constituent elements illustrated in Figure 6, also corresponding to a detail of constituent elements illustrated in Figure 8 with the difference that the first cross member is no longer in the maximum retracted configuration but in the non-maximum retracted configuration.
- - Figure 14 illustrates, in a top view, the constituent elements illustrated in Figure 13, with the difference that the first section is not shown.
- - Figure 15 illustrates, in a perspective view from above, an enlargement of a detail of constituent elements illustrated in Figure 6, also corresponding to a detail of constituent elements illustrated in Figure 13 with the difference that the end element is no longer fully inserted within the first section but partly outside the latter.
- FIG. 16 illustrates, in a top view, the constituent elements illustrated in Figure 15, with the difference that the first section is not shown.
- FIG. 17 illustrates, in a top view, an enlargement of a detail of the constituent elements illustrated in Figure 2, also corresponding to a detail of the constituent elements illustrated in Figure 15 with the difference that the first crossbar does not is no longer in the retracted configuration but in the deployed configuration.
- FIG. 18 illustrates, in a top view, the constituent elements illustrated in Figure 17, with the difference that the first section is not shown.
- Figure 19 illustrates, in a side perspective view, an enlargement of a detail of the constituent elements of Figure 18, the end element and the shaft having been made partially transparent.
- FIG. 20 illustrates, in a side perspective view, an enlargement of a detail of the constituent elements shown in Figure 2.
- the invention relates, according to a first aspect illustrated in the figures, to a stretcher 1 .
- the stretcher 1 preferably forms a stretcher device used to transport an individual whose condition (injured, ill, unconscious, deceased, etc.) requires lying down or, alternatively, sitting.
- said stretcher 1 is collapsible or collapsible, that is to say it is advantageously designed to, when not in use, be stored and transported in a folded and/or disassembled configuration. This makes it possible, as will be seen in more detail later, to give the stretcher 1 of the invention a particularly compact character when not in use, that is to say when the stretcher is not used to transport an individual and is therefore folded back on itself and/or dismantled.
- the stretcher 1 comprises at least a first and a second support arm 2, 3 to which and between which is intended to be attached a means of receiving an individual 4 (and/or material, optionally).
- the stretcher 1 (when it is obviously mounted) is advantageously designed for transport, in particular by stretcher bearers, rescuers and/or a specific vehicle (snowmobile, helicopter, ambulance, etc.), of said individual who is usually in a lying or seated position, on the receiving means 4.
- the latter is therefore preferably bordered and/or framed on each side (longitudinally) by the first and second support arms 2, 3, which are themselves, advantageously, located on either side of said receiving means 4.
- Said receiving means 4 is, according to a first variant, advantageously flexible, that is to say it does not have its own mechanical strength. It then comprises for example a (flexible) fabric, said fabric being formed of any suitable material, and therefore comprising for example textile (woven or not), natural and/or synthetic materials, etc.
- the receiving means 4 can advantageously be intended to be stretched between said first and second arms 2, 3.
- the receiving means 4, when it is flexible, can therefore be deformed to adapt to the shape of the body of the individual embarked by the stretcher 1.
- the receiving means 4 is substantially rigid, that is to say it has its own mechanical strength. In this last variant, once the stretcher 1 is assembled, the receiving means 4 can advantageously be substantially flat.
- the receiving means 4, when it is rigid, can be composed of several separate plates, interconnected by said first and second arms 2, 4, said plates possibly being designed to fold over each other.
- at least one of said plates is articulated, that is to say formed of two secondary plates connected to each other in rotation, for example by a common hinge.
- the stretcher 1 advantageously comprises at least the structural elements necessary for supporting the receiving means 4, and in particular said first and second arms 2, 3.
- the stretcher 1 can also include the receiving means 4 as such.
- Each arm 2, 3 advantageously has, when the stretcher 1 is mounted, a substantially elongated and substantially rigid respective general shape.
- each arm 2, 3 preferably has its own mechanical strength and extends in a respective longitudinal direction.
- said first arm 2 being in the first longitudinal direction Li described below
- said second arm 3 extends in the second longitudinal direction l_2 also described below.
- the first and second arms 2, 3 are preferably substantially parallel to each other, when the stretcher 1 is mounted.
- Said first longitudinal direction Li and second longitudinal direction U are therefore preferably, when the stretcher 1 is mounted (in the deployed configuration as will be seen below), substantially parallel.
- said first arm 2 comprises at least a first and a second end element 5, 6, as well as at least a first cable 7, attached to said first and second end elements 5, 6 and intended to be stretched between the latter in a first longitudinal direction Li.
- Said first cable 7 is advantageously flexible, that is to say it does not have its own mechanical strength.
- the assembly of the stretcher 1 thus advantageously comprises the tensioning of the first cable 7 in order to increase the rigidity of the said first arm 2.
- the first cable 1 advantageously does not present a significant stretching during this tensioning, said stretching being for example less than or equal to 20%, preferably less than or equal to 10%, more preferably less than or equal to 5%, more preferably still less than or equal to 3%, that is to say that the length of the stretched cable (at its final tension) is a maximum of 20%, 10%, 5%, or 3% greater than the length of the slack cable.
- Said first and second end elements 5, 6 advantageously form handles of said stretcher 1.
- most, almost all or all of the elements forming said first arm 2 extend between said first and second elements end 5, 6, preferably in said first longitudinal direction LJ.
- the first cable 7 is for example made of metal, in particular steel, and/or of another material (carbon, polymer, Kevlar, etc.) or a combination of several materials.
- the stretcher 1 comprises at least a first crosspiece 8 connected to said first and second arms 2, 3 and positioned at least partly between the latter.
- Said first crosspiece 8 is designed to evolve between a retracted configuration and an extended configuration in which said first crosspiece 8 holds said first and second arm 2, 3 farther apart than in said retracted configuration.
- said first crosspiece 8 is advantageously designed to allow the separation of said first and second arms 2, 3, this separation being advantageously adjustable or controllable, and more precisely greater when the first crosspiece is in the retracted configuration than when is in deployed configuration.
- the deployed configuration advantageously corresponds to the maximum spacing of the first and second arms 2, 3, when the stretcher 1 is mounted and ready to be used, while the retracted configuration preferably corresponds to spacings of the first and second arms 2, 3 which are less than the maximum spacing, these lower spacings corresponding to a state of the stretcher 1 completely disassembled (therefore ready to be stored and/or transported) or being assembled, that is to say partially disassembled.
- Said first crosspiece 8 is thus advantageously formed by a spacer, preferably foldable as will be seen below, connecting said first arm 2 to said second arm 3.
- the stretcher 1 being advantageously designated as collapsible, collapsible, and/or dismountable, the terms “disassembled”, “out of use”, “folded up”, and the like preferably designate a state in which the stretcher 1 is in during assembly or completely disassembled in order to be able to be stored and/or transported, as well as the retracted configuration of the first crosspiece 8.
- the terms “mounted”, “in use”, “unfolded “, “assembled”, and the like advantageously designate a state in which the stretcher 1 is completely assembled and ready to be used (notwithstanding the possibly subsequent assembly of the receiving means 4, or rather its attachment to the arms 2, 3) , as well as the deployed configuration of said first crosspiece 8.
- said first crosspiece 8 cooperates (mechanically) at least with said first end element 5 so that, in the retracted configuration, said first end element 5 and first crosspiece 8 are linked together by a mechanical connection allowing the at least one degree of freedom in translation along said first longitudinal direction Li, and so that in deployed configuration said mechanical connection inhibits at least said degree of freedom in translation along said first longitudinal direction Lj.
- said mechanical connection allows said first end element 5 to perform (compared to other elements of the first arm 2, for example with respect to said first crosspiece 8), at least one translation along said first longitudinal direction Li, while in said deployed configuration (that is to say when said first crosspiece 8 is in the deployed configuration), said mechanical connection prevents said first end element 5 from performing (relative to other elements of the first arm 2, for example relative to said first crosspiece 8), a translation in said first direction longitudinal Li.
- the stretcher 1 in the retracted configuration, is designed so that the mechanical connection between said first crosspiece 8 and said first end element 5 allows the latter to move in translation according to the first longitudinal direction Li, while in the deployed configuration, the stretcher 1 is designed so that the mechanical connection between said first crosspiece 8 and said first end element emitted 5 blocks the latter so as to prevent it from moving in translation at least along the first longitudinal direction Li.
- the mechanical connection linking said first end element 5 and first crosspiece 8 allows at least one degree of freedom in translation of the first end element 5 with respect to said first crosspiece 8 in said first longitudinal direction Li, and
- the mechanical connection linking said first end element 5 and first crosspiece 8 inhibits at least said degree of freedom in translation of the first end element 5 with respect to said first crosspiece 8 according to said first longitudinal direction Lj..
- the movement in translation along the first longitudinal direction Li authorized by said mechanical connection between said first crosspiece 8 and first end element 5 is, according to a first advantageous variant, constituted by a movement of said first element of end 5, and according to a first alternative variant, constituted by a movement of said first crosspiece 8, or alternatively constituted by a movement of said first crosspiece 8 and a movement of said first end element 5.
- said (mechanical) cooperation between said first end element 5 and said first crosspiece 8 is direct, that is to say that said first end element 5 and said first crosspiece 8 interact mechanically directly with each other. the other to form the mechanical connection which connects them, preferably without an intermediate element positioned between them to ensure the latter.
- said first arm 2 comprises a plurality of first tubular and hollow sections 9, which are designed to cooperate mechanically with each other, for example by interlocking with each other, in the extension of each other, preferably in said first longitudinal direction Lj.
- said first cable 7 passes through said first sections 9 and therefore connects the latter to said first and second end elements 5, 6.
- said first cable 7 is preferably intended to be tensioned, preferably by translation at least from the first end element 5 along said first longitudinal direction Lj, in order to ensure the overall rigidity of the first arm 2.
- the first cable 7 when it is tensioned, exerts tensile forces on the first and second end elements 5, 6 (since the first cable 7 is attached to the latter), these tensile forces being exerted on said first end element 5 towards said second end element 6 and on said second element d end 6 towards said first end element 5.
- the first cable 7 when the first cable 7 is tensioned, it will induce tensile forces bringing said first and second end element 5, 6 closer together. towards another, thereby wedging said first sections 9 between said first and second end elements 5, 6.
- first sections 9 preferably has a substantially at least partly respective frustoconical shape, each frustoconical part of a first section 9 being advantageously intended to be inserted at the least partly in the hollow of one of the other first sections 9 in order to achieve the mechanical cooperation by interlocking mentioned above, as illustrated in FIG. 7.
- Some of said first sections 9 can moreover be attached to each other at the using rivets and/or using clamps, or any other appropriate mechanical means, in combination or alone.
- One or more of said sections 9 can be formed by assembling several respective components, for example using rivets.
- Said first sections 9 each for example comprise a respective elongated shape extending along said first longitudinal direction Li and having a preferably substantially circular cross-section, for example round, oval or elliptical, or alternatively substantially polygonal, for example square, rectangular or triangular.
- said first crosspiece 8 comprises at least a first cam 10, said first end element 5 comprising a first housing 11 which accommodates said first cam 10, the latter being designed to circulate within said first housing 11 between a first end stop position, in said retracted configuration, and a second end stop position, in said deployed configuration.
- the first end stop position is for example illustrated in FIGS. 10 to 12, as well as in a less immediately visible manner (due in particular to the fact that the first section 9 conceals the first cam 10 and the first housing 11), in FIGS. 5, 8 and 9, while the second extreme stop position is for example illustrated in FIGS. 1 to 4, 17 and 20.
- said retracted configuration is advantageously maximal.
- said retracted configuration is advantageously intermediate, as illustrated in FIGS. section 9 hides the first cam 10 and the first housing 11), in Figures 6, 13 and 15.
- said first housing 11 extends substantially longitudinally along said first longitudinal direction Li., and therefore comprises at least one groove, one end of which forms said first extreme abutment position, and the other end of which forms said second extreme abutment position.
- Said first cam 10 is thus preferably designed to at least achieve, with respect to first end element 5, a translation along said first longitudinal direction Li when it circulates between said first and second extreme positions.
- said first end element 5 is thus advantageously designed to at least achieve, relative to said first cam 10, a translation in said first longitudinal direction Li when said first cam 10 circulates between said first and second positions. extremes.
- the first cam when mounting the stretcher 1, the first cam circulates 10 within said first housing 11, from the first end stop position, as illustrated in FIG. 11, to a first intermediate position , as shown in Figure 14, then to a second intermediate position, as shown in Figure 16, and finally arrives at the second end stop position, as shown in Figure 18.
- the first cam 10 when disassembly of the stretcher 1, the first cam 10 circulates within said first housing 11, from the second extreme abutment position, to a second intermediate position, then to a first intermediate position, and finally arrives at the first extreme stop position.
- the first crosspiece 8 is advantageously in the retracted configuration.
- Said first cam 10 comprises, according to a particular variant illustrated in particular in FIG. 19, a double cam, that is to say it comprises at least two substantially similar cam elements. This allows better (mechanical) cooperation between the first end element 5 and the first cam 10.
- said first end element 5 cooperates (mechanically) at least with at least one of said first sections 9, so that in retracted configuration said first end element 5 and first section 9 are linked together by a mechanical link allowing at least one degree of freedom in translation in said first longitudinal direction h, and so that in the deployed configuration said mechanical link inhibits at least said degree of freedom in translation in said first longitudinal direction Li.
- said first cam 10 advantageously circulates within said first housing 11, and is for example preferably in said first end stop position, in said first intermediate position, or in said second intermediate position.
- said first cam 10 is advantageously locked in position within said first housing 11, preferably in said second end stop position.
- said mechanical connection forms between said first end element 5 and said first section 9, a sliding connection in said first longitudinal direction Li when the first crosspiece 8 is in the retracted configuration, and a fixed connection (or recess) when the first crosspiece 8 is in the deployed configuration.
- said first end element 5 has at least one insertion portion 12 designed to:
- said insertion portion 12 forms a handle of said stretcher 1.
- said first end element 5 also has an internal portion 13, said internal portion 13 being designed to remain inserted at the within said first section 9 in the retracted configuration and in the deployed configuration.
- the first cam 10 advantageously allows the first end element 5 in which it is inserted, to perform a relaxation translation along said first longitudinal direction Lj., the first end element 5 being inserted within the first section 9 until the first cam 10 reaches said first end stop position, the first cable 7 then being relaxed, and the first end element 5 therefore no longer being able to sink any further into the first section 9 (the internal portion 13 and the insertion portion 12 are inserted within the first section 9).
- the first cam 10 therefore preferentially allows the first end element 5 in which it is inserted, to perform a tension translation in said first longitudinal direction L_i, the first end element 5 being inserted within the first section 9 until the first cam 10 reaches said second end stop position, the first cable 7 then being stretched (preferably to the desired maximum), and the first end element 5 can therefore no longer be extracted any further outside in the first section 9 (the internal portion 13 remains inserted, while the insertion portion 12 is outside the first section 9).
- said first end element 5 has a generally cylindrical shape, advantageously extending along the first longitudinal direction U.
- Said insertion portion 12 and internal portion 13 preferably also have a respective cylindrical shape, extending one behind the other and one attached to the other along the first longitudinal direction U.
- the insertion portion 12 can also be positioned outside of said first section 9, as illustrated in Figures 15 and 16.
- said first end element 5 is (at least partly) designed to slide within said first section 9 so that at least part (the insertion portion 12) of the first element end 5 can be inserted within said first section 9 or outside the latter, depending on whether said first crosspiece 8 is, respectively, in the retracted (in particular maximum) or deployed configuration.
- Such a configuration makes it possible to improve the compactness of said stretcher 1 when not in use, that is to say disassembled, and in particular in the retracted configuration (maximum advantageously).
- the first section 9 with which the first end element 5 cooperates is advantageously provided, at its end furthest from another first section 9, with one or more notches 14, which in particular make it easier to grasp the first end element 5 when it is inserted (completely in particular) within the first section 9. Said first end element 5 can thus be, in the retracted configuration, completely inserted within the first section 9.
- the stretcher 1 is designed so that, when said insertion portion 12 is extracted from said first section 9, or at least when most of said insertion portion 12 is extracted from said first section 9 , the first cable 8 undergoes a first tensioning, which is easy to perform manually, that is to say, it requires only minimal physical effort on the part of the user, the tension of the cable then advantageously not being maximum (that is to say according to a maximum tension desired, and preferably pre-calibrated, predetermined).
- said insertion portion 12 when it constitutes a handle, makes it possible to protect the latter during storage and transport of the stretcher 1 (that is to say when the latter is folded and/or disassembled ).
- said first crosspiece 8 cooperates (mechanically) at least with said first arm 2 so that, in the retracted configuration, said first crosspiece 8 and said first arm 2 are linked together by a mechanical connection allowing at least one degree of freedom in rotation along a first axis of rotation Ri.
- at least part of the first crosspiece 8 is designed to be able to rotate, relative to said first arm 2, along said first axis of rotation Ri.
- Said first crosspiece 8 is preferably rotatably mounted, along said first axis of rotation Ri, with said first arm 2, and more precisely with said first section 9 (the one that cooperates mechanically with the first end element 5), said rotation being advantageously authorized in the retracted configuration, but prohibited in the deployed configuration.
- the first crosspiece 8 advantageously comprises a first shaft 15 rotatably mounted along said first axis of rotation Ri with said first arm 2 (said first shaft 15 preferably being connected directly in rotation with said first arm 2, without intermediate element between them), and more advantageously with said first section 9.
- the mechanical connection between the first end element 5 and the said first crosspiece 8 allows the first shaft 15 to slide relative to the said first end element 5 in the first longitudinal direction Lj., while that in said deployed position, the mechanical connection between the first end element 5 and the said first crosspiece 8 inhibits the sliding of the first shaft 15 relative to the said first end element 5 in the first longitudinal direction L.
- the first shaft 15 is positioned at least partially within said first end element 5. This advantageously allows the first shaft 15 to enter into mechanical interaction with the first end element 5, for example via said first cam. 10.
- Said first shaft 15 advantageously embeds said first cam 10, which therefore also advantageously undergoes, in retracted configuration, and in particular between said first end-stop position and said first intermediate position, and between said second intermediate position and said second end-stop position , a rotation along said first axis of rotation Ri, within said first housing 11.
- the stretcher 1 comprises a first locking system 16, 17 designed to, in the deployed configuration, inhibit at least said degree of freedom in rotation along said first axis of rotation Ri.
- Said first blocking system 16, 17 comprises for example, as illustrated in the figures, at least one male blocking means 16, for example an indexing finger 16 carried by said first arm 2, and a female blocking means 17, by example formed by an orifice 17 provided in said first crosspiece 8, and more precisely in said first shaft 15.
- Said orifice 17 can be substantially through, horn shown in the figures.
- Said male 16 and female 17 locking means are therefore designed to cooperate in order to block, preferably reversibly, the rotation, along said first axis of rotation Ri, of said first crosspiece 8 relative to said first arm 2 (and more precisely relative to said first section 9), when the first crosspiece 5 is in the deployed configuration.
- Said male locking means 16 is therefore preferentially carried by said first arm 2, and more precisely attached to said first section 9.
- said first crosspiece 8 is designed to be able to be rotated to a position of rotational locking, in which the locking system 16, 17 inhibits at least said degree of freedom in rotation along said first axis of rotation Ri.
- the indexing finger 16, out of the locking position and during the rotation of the first shaft 15 according to said first axis of rotation Ri is designed to slide around said first shaft 15 until it reaches said position. blocking, in which it is facing the orifice 17 and can penetrate within the latter, thus blocking the rotation of said first shaft 15 along said first axis of rotation Ri.
- Figures 11, 14 and 16 illustrate unlocked positions, while Figures 17 to 20 illustrate the locked position.
- Said blocking position advantageously corresponds to said second extreme position of said first cam 10.
- said first cam 10 is designed to inhibit at least the degree of freedom in translation in said first direction longitudinal Li of said first end element 5 with respect to said first crosspiece 8.
- the first cam 10 comprises for example a first stop finger 19 designed to cooperate (mechanically) with the first housing 11 in order to inhibit the minus the degree of freedom in translation, in said first longitudinal direction Li, of said first end element 5 with respect to said first crosspiece 8 and/or said first section 9.
- a deployed configuration is therefore illustrated in FIGS. 1 to 4 and 17 to 20.
- the first finger 19 is preferably designed to come into abutment with the inside of said first housing 11 when the first cam 10 passes from the second position. intermediate ion at the second extreme position.
- said first crosspiece 8 comprises at least a first and a second crosspiece body 20, 21 linked together by a mechanical connection allowing at least one degree of freedom in rotation along a second axis of rotation R2.
- Said second axis of rotation R2 is preferably separate and distant from said first axis of rotation Ri, and more precisely separated from the latter by said first crosspiece body 20.
- Said first crosspiece 8 comprises for example a first articulation 22 (i.e. that is to say a hinge, or a means of pivoting), which makes it possible in particular to produce said mechanical connection allowing the degree of freedom in rotation along the second axis of rotation R2.
- Said first and second crosspiece bodies 20, 21 are preferably connected to each other via said joint 22.
- Said retracted configuration advantageously corresponds to a folded configuration of said first crosspiece 8 in which said first and second crosspiece bodies 20 , 21 are folded at least in part towards each other to form between them a first angle, for example strictly less than 180°.
- Said deployed configuration preferably corresponds to an unfolded configuration of said first crosspiece 8 in which said first and second crosspiece body 20, 21 are unfolded at least partly away from each other to form between them a second angle substantially greater than said first angle, said second angle being for example substantially equal to 180°.
- Said first and second angles are preferably measured on the same side, and correspond to the same angle measured when the first crosspiece 8 is respectively in the retracted configuration or in the deployed configuration.
- the first angle is for example between 5 and 180° excluded, and can vary.
- the second angle is for example greater than or equal to 180°, for example comprised between 180° and 220° inclusive, and preferably does not vary, the deployed configuration corresponding, as we have seen, advantageously to a blocking position.
- the first crosspiece body 20 is therefore advantageously connected on the one hand, via one end, to said articulation 22, and on the other hand, via another end opposite the previous one, to said first shaft 15.
- the first crosspiece 8 unfolds, that is that is to say that said first and second crosspiece bodies 20, 21 rotate relative to each other along the second axis of rotation R2, the first and second crosspiece bodies 20, 21 forming between them an angle which increases to a maximum (which forms the second angle) where the first crosspiece body 20 is blocked at least in rotation (along the first axis of rotation Ri), and preferably in position, relative to the first section 9 and/or to the first end element 5.
- said first crosspiece body 20 is advantageously designed to be locked at least in rotation, along second axis of rotation R2, with respect to said second crosspiece body 21 .
- said first and second axes of rotation Ri, R2 are substantially parallel to each other (and distant from each other).
- said first axis of rotation Ri is substantially perpendicular to said first longitudinal direction U.
- Said first axis of rotation Ri and first longitudinal direction U are optionally secant, as illustrated in the figures.
- the first sections 9 and the first and second end elements 5, 6 preferably each have an elongated shape extending along said first longitudinal direction b.
- the various elements forming the first and second arms 2, 3 advantageously have, for the most part (with the exception of the cables 7 of course), an outfit own mechanics, and are for example made of metal or polymer.
- first crosspiece 8, the first sections 9 and the first and second end elements 5, 6 are for example made of metal (steel, etc.) or of polymer, and moreover, they are advantageously rigid, c that is to say that they have their own mechanical strength.
- a stretcher 1 according to the embodiment illustrated in the figures will now be described in the following.
- Said stretcher 1 is to begin with completely disassembled, that is to say that the first crosspiece 8 is in the maximum retracted configuration, corresponding in particular to Figures 5 and 8 to 12, the insertion portion 12 then being inserted into of the first section 9, and therefore generally hidden.
- the first cam 10 comprises a second stop finger 23 cooperating with the first housing 11 to prevent an unwanted movement, in translation according to a first direction of the first direction.
- the second finger 23 does not cooperate, having tilted due to the rotation mentioned above according to the first axis of rotation Ri then no longer cooperates with the first housing 11 to block in translation, and thereby authorizes the movement, by a translational movement in the first longitudinal direction Li, of the first cam 10 within said first housing 11.
- the insertion portion 12, which was still inserted within the first section 9, is then extracted from the latter, and the first cam 10 passes from the first intermediate position to the second intermediate position, which is illustrated in particular in FIGS. 15 and 16. To perform this passage, it suffices for the user to pull on the first end element 5, if necessary by catching it thanks to the notches 14 of the first section 9 to pull the first end element 5 out of the latter.
- the first tensioning of the first cable 7, which is physically easy to achieve, is then carried out, and the latter is at least partly stretched between the first and second end elements 5, 6.
- the first cam 10 then comes into abutment against one end of the first housing 11, along the first longitudinal direction Lj.
- the user pulls or pushes again on the first crosspiece 8 so as to further increase the angle formed between the first and second crosspiece bodies 20, 21, which therefore formed the first angle, until it formed the second angle, for example equal to approximately 180°.
- the first cam 10 then performs another rotation along the first axis of rotation 10, and the first stop finger 19 cooperates with the first housing 11 to push the first end element 5 in translation along the first longitudinal direction Li so as to to tighten (even more) the first cable 7, thereby performing a second, final, tensioning of the latter.
- the first cam 10 is then advantageously designed to be able to be rotated along the first axis of rotation Ri so that the first crosspiece 8 passes from the retracted configuration (more precisely the intermediate position of the first cam 10) to the configuration deployed (corresponding to the second extreme position of the first cam 10) while the first end element 5 performs a final translation in the first longitudinal direction Li in order to achieve the final tensioning of the first cable 7, and the blocking of all.
- the orifice 17 with which the first shaft 15 is provided is then facing the indexing pin 16, and the latter is therefore inserted at least partly within the said orifice 17, blocking the rotation according to the first axis of rotation Ri of the first shaft 15 and therefore of the first crosspiece body 20 which is attached to said first shaft 15.
- the first crosspiece 8 (or at least the first crosspiece body 20) is thus in the blocking position.
- the indexing finger 16, which is carried by the first section 9, therefore blocks the first cam 10 and the first shaft 15 in rotation, while the first cam 10, attached via the first shaft 15 to the first cross-member body 20, blocks in translation (in the first longitudinal direction Li) the first end element 5.
- the first crosspiece 8 is then in the deployed configuration, as illustrated in FIGS. 1 to 4 and 17 to 20.
- the first section 9, the first end element 5 and the first crosspiece 8 are then in rigid connection (or embedding) as long as the indexing pin 16 is not disarmed, it is that is to say pulled, thus freeing the orifice 17 and allowing the user to push or pull to fold the first crosspiece 8, that is to say to fold the first and second crosspiece bodies 20, 21 one towards the other (the angle formed between them then decreases) to return to the retracted configuration.
- the stretcher 1 preferably comprises several elements as mentioned above, and in particular said second arm 3 preferably comprises at least a third and a fourth end element 24, 25 as well as at least a second cable 26 attached to said third and a fourth end elements 24, 25 and intended to be stretched between the latter in a second longitudinal direction L2, said first crosspiece 8 cooperating at least with said third end element 24 so that in retracted configuration said third end element 24 and first crosspiece 8 are linked together by a mechanical link allowing at least one degree of freedom in translation along said second longitudinal direction L2, and so that in the deployed configuration said mechanical link inhibits at least said degree of freedom in translation along said first longitudinal direction L2.
- Said second crosspiece body 21 is advantageously mounted for rotation with said second arm 3.
- the stretcher 1 advantageously has a pair of elements equivalent to what has been described for the first end element 5, the blocking system 16, 17, the first sections 9, etc.
- the second crosspiece body 21 preferably performs, during the assembly of said stretcher 1, the same rotational movement (symmetrically) as the first crosspiece body 20.
- the stretcher 1 also preferably comprises a second crosspiece, as illustrated in Figures 1 to 4, away from the first crosspiece 8, said second crosspiece has substantially the same operation as the first crosspiece 8, said second crosspiece therefore also being connected to said first and second arms 2, 3. Said first and second arms 2, 3 are advantageously substantially similar, and even symmetrical.
- the stretcher 1 of the invention allows, when it is completely disassembled/folded (in the maximum retracted configuration), to be stored and transported while having a minimum bulk, and in the mounted/unfolded configuration, to be used for the transporting a person (or equipment) in optimal safety and comfort conditions, while offering optimized duration and ease of assembly.
- the invention finds its industrial application in the design, manufacture and use of collapsible stretchers.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
- Invalid Beds And Related Equipment (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2100497A FR3118868B1 (fr) | 2021-01-19 | 2021-01-19 | Civiere pliable amelioree |
| PCT/FR2022/050092 WO2022157447A1 (fr) | 2021-01-19 | 2022-01-17 | Civiere pliable amelioree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4281027A1 true EP4281027A1 (fr) | 2023-11-29 |
Family
ID=75539487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22705855.9A Pending EP4281027A1 (fr) | 2021-01-19 | 2022-01-17 | Civiere pliable amelioree |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12599516B2 (fr) |
| EP (1) | EP4281027A1 (fr) |
| CN (1) | CN117136041A (fr) |
| FR (1) | FR3118868B1 (fr) |
| WO (1) | WO2022157447A1 (fr) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1129089A (en) * | 1914-08-21 | 1915-02-23 | Alexander Hajas | Stretcher. |
| US3426367A (en) * | 1965-12-21 | 1969-02-11 | John G Bradford | Collapsible supporting structures |
| IL74801A (en) * | 1985-04-03 | 1989-06-30 | Zalman Zaharia | Foldable framework and portable objects having such a framework |
| NO854599L (no) * | 1985-11-18 | 1987-05-19 | Apotekernes Faellesindkjoep A | Baaresystem. |
| NL8901396A (nl) * | 1989-06-01 | 1991-01-02 | Productie En Exploitatie Mij D | Draagbaar. |
| FR2722401B1 (fr) * | 1994-07-13 | 1996-10-04 | Daouk Antar | Civiere pliante parachutable |
| WO2010068826A2 (fr) * | 2008-12-10 | 2010-06-17 | Tac-Evac, Llc | Brancard pliable, système et procédé |
| US20120066836A1 (en) * | 2010-09-21 | 2012-03-22 | Olav Kaarstein | Foldable stretcher and system for transporting a patient on said stretcher |
| US20130086748A1 (en) * | 2011-06-06 | 2013-04-11 | Joanne S. Walter | Compact lightweight collapsible stretcher with reinforced bed |
| GB2495351B (en) * | 2012-03-28 | 2024-10-02 | Compact Innovation Ltd | An elongate body supporting device |
| CN208926831U (zh) * | 2018-03-20 | 2019-06-04 | 军事科学院系统工程研究院卫勤保障技术研究所 | 一种担架的把手装置 |
| RU187114U1 (ru) * | 2018-07-09 | 2019-02-19 | государственное казенное учреждение здравоохранения Ивановской области "Территориальный центр медицины катастроф Ивановской области" (ГКУЗ ИО "ТЦМК ИО") | Носилки медицинские складные |
| US11679042B2 (en) * | 2021-11-09 | 2023-06-20 | Romeo Six Llc | Litter with curved feet for easy loading |
-
2021
- 2021-01-19 FR FR2100497A patent/FR3118868B1/fr active Active
-
2022
- 2022-01-17 CN CN202280022281.3A patent/CN117136041A/zh active Pending
- 2022-01-17 WO PCT/FR2022/050092 patent/WO2022157447A1/fr not_active Ceased
- 2022-01-17 US US18/272,914 patent/US12599516B2/en active Active
- 2022-01-17 EP EP22705855.9A patent/EP4281027A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3118868A1 (fr) | 2022-07-22 |
| CN117136041A (zh) | 2023-11-28 |
| US20240082076A1 (en) | 2024-03-14 |
| WO2022157447A1 (fr) | 2022-07-28 |
| FR3118868B1 (fr) | 2023-11-24 |
| US12599516B2 (en) | 2026-04-14 |
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