GB2628076A

GB2628076A - Adjustable support apparatus

Info

Publication number: GB2628076A
Application number: GB2214529.6A
Authority: GB
Inventors: Duggal Antonio; Partridge Dean; Thomas-Hall Nathaniel
Original assignee: Evac and Chair International Ltd
Current assignee: Evac and Chair International Ltd
Priority date: 2022-10-03
Filing date: 2022-10-03
Publication date: 2024-09-18
Also published as: GB202214529D0

Abstract

An adjustable support apparatus comprising an upper support element 100 for supporting a stretcher or incubator or the like, a lower support element 300 for transporting the apparatus across a surface in use and a support structure 200 releasably connectable to either the upper or lower support. The device may have stowed and in use positions controlled using a hydraulic piston actuator 40 working with a scissor arrangement to lift the upper support. The actuator may have a locking mechanism with a detent pin and be foot operable. The releasable connections may use cooperating recesses and formations. Also disclosed is an apparatus with an upper support section which has first and second portions which have a rotatable connection and can fold towards each other. The device is designed to be used with air ambulances.

Description

ADJUSTABLE SUPPORT APPARATUS

FIELD

The disclosure relates to an adjustable support apparatus, particularly, but not exclusively, for use in air ambulances.

The use of support apparatuses for supporting devices such as stretchers or incubators is well known in the field of first aid. Such support apparatus are used to transfer patients between hospitals or from hospitals to hospices or the like. Support apparatuses are typically designed for use in emergency vehicles such as ambulances, air ambulances or even planes for the transportation of patients. It is important that support apparatuses are easy to use and robust as they are used in emergency situations where it is very important that the apparatuses function correctly and do not prevent or hinder the giving of first aid. The present invention has been developed to address these issues.

BRIEF DESCRIPTION OF THE INVENTION

According to a first aspect of the invention we provide an adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like; a lower support element for supporting a ground engaging device for transporting the apparatus across a surface in use; and a support structure for supporting the upper support element on the lower support element; wherein the upper support element is releasably connectable to the support structure and/or the lower support element is releasably connectable to the support structure.

The upper support element may be releasably connectable to the support structure.

The lower support element may be releasably connectable to the support structure.

The support structure may be movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element.

The apparatus may include an actuator connectable to the support structure for moving the support structure from the first condition to the second condition.

The actuator may be connected to the lower support element and may be releasably connectable to the support structure.

The actuator may be rotatably connected to the lower support element and may be releasably connectable to the support structure.

The actuator may include first and second ends, wherein the first end may be releasably connectable to the support structure and wherein the second end may be rotatably connected to the lower support element.

The apparatus may include an actuator locking member for locking the first end of the actuator relative to the support structure.

The actuator locking member may be a detent pin.

The actuator may be foot operable.

The actuator may be a hydraulic piston.

The support structure or the lower support element may include a first formation for positioning the support structure or lower support element relative to the other of the support structure or lower support element.

The other of the support structure or the lower support element may include a second formation for receiving the first formation.

The first formation may be a protrusion.

The second formation may be an opening.

The apparatus may include a locking member for locking the first formation relative to the second formation.

The apparatus may include a further opening through which, in use, the locking member may pass for engagement with the first formation.

The first formation may include a recess, wherein the locking member, in use, may be at least partially positioned in the recess.

The locking member may be a detent pin.

The first formation may extend away from a remainder of the support structure, preferably vertically.

The apparatus may include a plurality of first formations.

The apparatus may include a plurality of second formations.

The apparatus may include a plurality of locking members.

The apparatus may include a plurality of further openings.

The support structure or the upper support element may include a third formation for positioning the support structure or upper support element relative to the other of the support structure or upper support element.

The other of the support structure or the upper support element may include a fourth formation for receiving the third formation.

The third formation may be a protrusion.

The fourth formation may be a recess.

The third formation may be movable between first and second positions.

In the first position the third formation can move freely with respect to the fourth formation.

In the second position the third formation may be locked in position with respect to the fourth formation.

The third formation may be rotatably movable between first and second positions.

The apparatus may include a plurality of third formations.

The apparatus may include a plurality of fourth formations.

The support structure may include location formations for locating the upper support element relative to the support structure.

The support structure may include a scissor mechanism to alter the distance between the upper support element and the lower support element.

The scissor mechanism may include a first set of generally elongate members and a second set of generally elongate members.

The first set of generally elongate members may be positioned, in use, adjacent the lower support element and may be pivotally connected to the second set of generally elongate members.

The second set of generally elongate members may be positioned, in use, adjacent the upper support element.

The apparatus may include one or more fastener members for fastening the apparatus in a stowed condition.

According to a second aspect of the invention we provide an adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like; a lower support element for supporting a ground engaging device for transporting the apparatus across a surface in use; and an actuator movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element; wherein the actuator is, directly or indirectly, releasably connectable to the upper support element or the lower support element and is connected to the other of the lower support element and the upper support element.

The apparatus may further include a support structure for supporting the upper support element on the lower support element; wherein the support structure may be movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element.

The actuator may be releasably connectable to the upper support element and may be connected to the support structure or the lower support element.

The actuator may be releasably connectable to the support structure and may be connected to the lower support element or the upper support element.

The actuator may be releasably connectable to the lower support element and may be connected to the support structure or the upper support element.

The second aspect of the invention may include one or more or all of the features of the first aspect of the invention.

According to a third aspect of the invention we provide an adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like including first and second portions, said upper support element defining a support surface which extends across the first and second portions on which a stretcher or incubator may rest; and a support structure for supporting the upper support element; wherein the first portion is foldable towards the second portion; wherein the apparatus includes a connection member which connects the first portion to the second portion; wherein the connection member includes a first connection portion and a second connection portion, wherein the first connection portion is rotatably connected to the second connection portion about an axis A; wherein the axis A lies on a plane P in which the support surface lies in use.

The apparatus may include a plurality of connection members.

The upper support element may include a third portion.

The third portion may be foldable towards the second portion.

The apparatus may include a further connection member which connects the third portion to the second portion.

The further connection member may include a third connection portion and a fourth connection portion, wherein the third connection portion may be rotatably connected to the fourth connection portion about an axis B. The axis B may lie on the plane P. The apparatus may include a plurality of further connection members.

The third aspect of the invention may include one or more or all of the features of the first and/or second aspects of the invention.

BRIEF DESCRIPTION OF THE FIGURES

In order that the present disclosure may be more readily understood, preferable embodiments thereof will now be described, by way of example only, with reference to the accompanying drawings, in which: FIGURE 1 is a perspective view of an adjustable support apparatus in an in use condition, embodying the present disclosure; FIGURE 2 is a perspective view of the apparatus of figure 1 in a stowed condition; FIGURE 3a is an exploded perspective view of the apparatus of figure 1; FIGURE 3b is a perspective view of the lower support element of figure 1; FIGURE 3c is a perspective view of the support structure of figure 1; FIGURE 3d is a perspective view of the upper support element of figure 1; FIGURE 3e is an enlarged view of the connection member of figure 3d; FIGURE 4 is an exploded perspective view of the apparatus of figure 2; FIGURE 5 is an enlarged alternative perspective view of section 5-5 of figure 1; FIGURE 6 is a cross-sectional view of figure 5 along plane 6-6 which extends generally vertically along the end frame members of the lower support element and support structure; FIGURE 7 is a further perspective view of the section shown in figure 5 but where the lower support element and support structure have been separated; FIGURE 8 is an enlarged rear view of figure 1 showing the attachment of the actuator to the support structure; FIGURE 9 is a cross-sectional view of figure 8 along a generally vertical plane that intersects the actuator locking member; FIGURE 10 is a further view of figure 8 with the actuator locking member in an unlocked position; FIGURE 11 is a cross-sectional view of figure 10 along a generally vertical plane that intersects the actuator locking member; FIGURE 12 is an enlarged view of section 12-12 of figure 1; FIGURE 13 is a cross-sectional view of figure 12 along the plane 13-13 showing the third and fourth formations; FIGURE 14 is a further view of the section shown in figure 12 but where the upper support element and support structure have been separated; FIGURE 15 is a side view of the upper support element of figure 1; FIGURE 16 is a further side view of figure 15 with the first portion of the upper support element folded on top of the second portion of the upper support element; and FIGURE 17 is a further side view of figure 16 with the third portion of the upper support element folded on top of the second portion of the upper support element.

DETAILED DESCRIPTION OF THE DISCLOSURE

Referring to the figures, there is shown an adjustable support apparatus 10 in accordance with the present disclosure. The apparatus 10 includes an upper support element, 100, a support structure 200 and a lower support element 300. The upper support element 100 is for supporting a stretcher or incubator or the like. The lower support element 300 is for supporting a ground engaging device for transporting the apparatus across a surface in use, e.g., a castor wheel. The support structure 200 is for supporting the upper support element 100 on the lower support element 300.

The apparatus 10 is movable between a first, collapsed, condition and a second, in use, condition.

In particular, the upper support element 100 may include first, second and third portions 102, 104, 106. The first and third portions 102, 106 may be foldable from a second, in use, condition (shown in figures 1 and 3a) to a first, stowed, condition towards the second portion 104 (shown in figures 2 and 4) as the apparatus 10 moves from an in use condition to a collapsed, or stowed, condition.

As the apparatus 10 moves from the first, collapsed, condition to the second, in use, condition the support structure 200 may extend, or be movable, from a stowed condition to an in use condition to alter the distance between the upper support element 100 and the lower support element 300 (described in more detail below). The upper support element 100 and the lower support element 300 may be provided with one or more fastener members 12 for fastening the apparatus 10 in a collapsed/stowed condition.

The upper support element 100 may be releasably connectable to the support structure 200. The lower support element 300 may be releasably connectable to the support structure 200. This is advantageous for a number of reasons. For example, being able to separate the upper support element 100, support structure 200 and lower support element 300 permits the apparatus 10 to be stored in multiple locations. This is advantageous in environments where space is at a premium (for example in an air ambulance) and it might not be possible to store the apparatus 10 once assembled. Further, adjustable support apparatuses are used in emergency situations. Therefore, it is very important that they function correctly in these situations. Accordingly, it is important that the apparatus 10 is maintained and any damage to the apparatus is fixed quickly (which may occur during use). Being able to break down the apparatus 10 into components enables easier maintenance of the apparatus 10 and enables replacement parts to be quickly fitted without the need to find an entire replacement apparatus 10.

As mentioned above, the apparatus 10 includes a lower support element 300 (shown in figure 3b in isolation). The lower support element 300 provides a base to which the support structure 200 is connected which the upper support element 100 is connected to in turn. As can be seen in the figures, the lower support element 300 includes first and second frame sub-structures 300a, 300b. The first frame sub-structure 300a is positioned above the second frame sub-structure 300b. The first and second frame sub-structures are mirror images of each other and so only the first frame sub-structure 300a will be described. In embodiments only a single frame sub-structure may be provided. In embodiments, three or more frame sub-structures may be provided.

The first frame sub-structure 300a includes a pair of frame members 302, 304 positioned at each side of the apparatus 10. The frame members 302, 304 may be connected together at a first end of the apparatus 10 by an end frame member 306 and at a second, opposite, end of the apparatus 10 by an end frame member 308. The end frame members 306, 308 may extend perpendicularly between the elongate side frame members 302, 304. A further intermediate frame member 310 may be provided between the elongate side frame members 302, 304 and the end frame members 306, 308.

Each end of the end frame members and intermediate frame member 306, 308, 310 may be provided with a connection member 312 for connecting the first frame substructure 300a to the second frame sub-structure 300b. In embodiments only the end frame members 306, 308 may be provided with a connection member 312. In embodiments, further connection members 313 may be provided at positions along the elongate side frame members 302, 304. The further connection members 313 may be connected to the intermediate frame member 310. One or more of the connection members 312 may be provided with a formation, or opening/recess, for receiving a protrusion of the support structure 200 (described in more detail below). In embodiments, only the connection members positioned at ends of the end frame members 306, 308 may be provided with a formation, or opening/recess.

Advantageously, the first frame sub-structure 300a may be provided with an alignment member (not shown) for aligning the support structure 200 with the lower support element 300 before attached the support structure 200 to the lower support element 300. The alignment member may extend in a direction generally perpendicular to the frame members 302, 304 and the end frame members 306, 308. The alignment member may extend in a direction generally towards the support structure 200 in use. In embodiments the second frame sub-structure 300b may include an alignment member. In embodiments no alignment member may be provided.

The apparatus 10 may include an actuator 40 connectable to the support structure 200 for moving the support structure 200 from the first condition to the second condition. The actuator 40 includes first and second respective ends 404, 402 for connection to the apparatus 10. The first end 404 may be releasably connectable to the support structure 200 (described in more detail below). In the present embodiment the actuator 40 is a hydraulic piston. In embodiments the actuator 40 may not be a hydraulic piston. For example, the actuator 40 may be an electric motor or other mechanical mechanism without departing from the scope of the present disclosure.

The actuator 40 may be connected, preferably rotatably connected, to the lower support element 300. In particular, the second end 402 of the actuator 40 may be rotatably connected to the lower support element 300. The lower support element 300 may include an actuator attachment portion 314 for attaching the actuator 40 to the lower support element 300. The actuator attachment portion 314 may be positioned inwardly of the end frame member 308. The actuator attachment portion 314 may be positioned between the end frame member 308 and the intermediate frame member 310. The actuator attachment portion 314 may extend towards and connect to the end frame member 308. In embodiments the first frame sub-structure 300a may include the actuator attachment portion 314. In embodiments the second frame sub-structure 300b may include the actuator attachment portion 314. The piston 40 may be rotatably attached to the actuator attachment portion 314. In embodiments the piston 40 may be slidably or pivotally attached to the actuator attachment portion 314 without departing from the scope of the present disclosure.

The piston 40 may be operably connected to a lever 42 to cause the piston to extend from a first position to a second position. The lever 42 may be foot operable. In other words, the actuator 40 may be foot operable. The lever 42 may be connected to the first frame sub-structure 300a.

In embodiments, the actuator 40 may be, directly or indirectly, releasably connectable to the upper support element 100 or the lower support element 300 and may be connected to the other of the lower support element 300 and the upper support element 100. In embodiments, the actuator may be either: a) releasably connectable to the upper support element and may be connected to the support structure or the lower support element; b) releasably connectable to the support structure and may be connected to the lower support element (as in the present embodiment) or the upper support element; or c) releasably connectable to the lower support element and may be connected to the support structure or the upper support element.

Each end of each elongate side frame member of the second frame sub-structure 300b is provided with a castor wheel 50a, 50b, 50c, 50d. In other words, the lower support element 300 is provided with four castor wheels, one at each corner of the lower support element 300. Each castor wheel 50 is of conventional form and can be individually braked by a respective foot pedal 51. It will be appreciated, however, that other types or combinations of wheels could be utilised.

The lower support element 300, and in particular the second frame sub-structure 300b, includes fixation members 60a, 60b for fixing the apparatus 10 relative to a vehicle in which the apparatus 10 is located, e.g., an ambulance. The fixation members 60a, 60b are rotatable relative to the lower support element 300 about the end frame members to which they are attached. In embodiments the fixation members may not be rotatable. For example, the fixation members may be slidably or pivotally attached to the lower support element 300 without departing from the scope of the present disclosure. In embodiments the fixation members may be attached to the first frame sub-structure 300a.

As will be appreciated, the lower support element 300 in the present embodiment is generally cuboidal. In embodiments the lower support element 300 may be other shapes without departing from the scope of the present disclosure, e.g., cube shaped, prism shaped, parallelepiped or an irregular shape.

As mentioned above, the support structure 200 (shown in figure 3c in isolation) is for supporting the upper support element 100 on the lower support element 300. The support structure 200 includes first and second support sub-structures 200a, 200b which are generally rectangular in plan view. The first and second support sub-structures 200a, 200b each include respective elongate side frame members 206a, 206b, 208a, 208b connected at their respective ends by end frame members 210a, 210b, 212a, 212b. The first and second support sub-structures 200a, 200b may be connected to each other by one or more sets of generally elongate members, e.g., first and second sets of generally elongate members, or one or more pairs of cross members 202, 204. In the present embodiment four pairs of cross members connect the first and second support substructures 200a, 200b. In embodiments more or fewer pairs of cross members may be used. The configuration of the pairs of cross members 202, 204 connecting the elongate side frame members 206a, 206b is a mirror image of the pairs of cross members 202, 204 connecting the elongate side frame members 208a, 208b. Therefore only the configuration of the pairs of cross members 202, 204 connecting the elongate side frame members 206a, 206b will be described.

The cross members 202, 204 include first and second respective ends. The cross members 202, 204 are pivotally connected to each other between their ends at 205 by a conventional fastening, such as a fastener passing through apertures in both cross members 202, 204 with an appropriate bearing or bushing, if desired.

The first ends of the cross members 202a, 204a are connected to the first support sub-structure 200a. In particular, the first end of the cross member 202a is movably connected to the first support sub-structure 200a, e.g., by a rack and pinion mechanism or slidably connected. The first end of the cross member 204a may be rotatably or pivotally connected to the first support substructure 200a. This permits the cross members 202a, 204a to extend away from the sub-structure 200a. The cross members 202a, 204a may define a first set of generally elongate members which are positioned, in use, adjacent the lower support element 300.

The second ends of the cross members 202a, 204a are rotatably or pivotally connected to first ends of further cross members 202b, 204b positioned above cross members 202a, 204a.

The second ends of the further cross members 202b, 204b are connected to the second support sub-structure 200b. In particular, the second end of the cross member 204b is movably connected to the second support sub-structure 200b, e.g., by a rack and pinion mechanism or slidably connected. The second end of the cross member 202a may be rotatably or pivotally connected to the second support sub-structure 2006. This permits the cross members 202b, 204b to extend away from the sub-structure 200b. The cross members 202b, 204b may define a second set of generally elongate members which are positioned, in use, adjacent the upper support element 100.

As described above, the first set of generally elongate members may be pivotally connected to the second set of generally elongate members. This may form a scissor mechanism. In other words, advantageously, the cross members 202, 204 provide a scissor mechanism, or scissor lift mechanism, to alter the distance between the first and second sub-structures 200a, 200b and therefore the upper and lower support elements 100, 300. This is advantageous in permitting the upper support element be positioned at a desired height for a user and for ease of loading a patient onto the apparatus, e.g., if a patient is on the floor and needs to be lifted onto the apparatus 10.

As mentioned above, and as shown in figures 8 to 11, the actuator 40 may be releasably connectable to the support structure 200. In particular, the apparatus 10 may include an actuator locking member 230 for locking the first end 404 of the actuator 40 relative to the support structure 200, as described in more detail below.

The support structure 200 may include an actuator attachment formation 220 which extends between cross members 202b preferably in a direction generally perpendicular, in plan view, to the elongate side frame members 206a, 206b. The attachment formation 220 may include a bracket 222 in which the first end 404 of the actuator 40 may be positioned. The bracket 222 may include openings 224, 226 and an actuator locking member 230. In the present embodiment the actuator locking member 230 is a detent pin. In embodiments other locking members could be used. The actuator locking member 230 is movable from a first, locked, position (as shown in figures 8 and 9) to a second, release, position (as shown in figures 10 and 11). The first end 404 of the actuator 40 may include an opening 406, as shown in figure a In the first, locked, position the actuator locking member 230 may pass through the openings 406, 224, 226 to lock the first end of the actuator 404 relative to the support structure 200. In the second release position the actuator locking member 230 does not pass through the openings 406, 224 and so the first end 404 of the actuator 40 may be moved relative to the actuator attachment formation 220. The actuator locking member 230 may be generally elongate and have first and second ends 2300, 2302. The first end 2300 may include a grip 2301 for a user for gripping and moving the actuator locking member 230 between the first and second positions. The second end 2302 may, in use, pass through the openings 406, 224, 226.

In use, if a user wishes to disconnect the support structure 200 from the lower support element 300 the actuator locking member 230 is moved from the first, locked, position to the second, release, position such that the actuator locking member 230 no longer passes through the opening 406 (as shown in figures 10 and 11). If a user wishes to connect the actuator 40 to the support structure 200, e.g., when they are assembling the apparatus 10, then a user first aligns the opening 406 with the openings 224, 226 and then moves the actuator locking member 230 from the second position to the first position passing through the openings 406, 224, 226. In the present embodiment the actuator locking member 230 is slidable from the first position to the second position and vice versa. In embodiments the actuator locking member 230 may move in other ways without departing from the scope of the present disclosure.

Such a releasably connectable actuator is advantageous. Such a construction permits the actuator 40 to be positioned on the lower support element 300 whilst effecting movement of the support structure 200 and also permits the lower support element 300 to be releasably connectable to the support structure 200. This enables more compact storage of the apparatus 10 in different configurations than was previously possible. Therefore, the apparatus 10 can also be stored in different ways to suit different purposes or vehicle setups.

Referring to figures 5 to 7, the support structure 200 may include a first formation 500 for positioning the support structure 200 relative to the lower support element 300. The lower support element 300 may include a second formation 600 for receiving the first formation 500. The apparatus may include a further opening through which, in use, a locking member may pass for engagement with the first formation (explained in more detail below). In embodiments the support structure or the lower support element may include the first formation for positioning the support structure or lower support element relative to the other of the support structure or lower support element. The other of the support structure or the lower support element may include the second formation for receiving the first formation. In embodiments the support structure 200 may include one or more first formations and/or one or more second formations and/or one or more further openings. In embodiments the lower support element may include one or more first formations and/or one or more second formations and/or one or more further openings.

In embodiments the first formations are positioned at the ends of the elongate frame members 206b. In other words, in embodiments the first formations are positioned at respective corners of the support structure 200 and in particular the second support sub-structure 200b. The first formations may extend, downwardly, towards the lower support element 300 in use to be received by the second formations.

In embodiments the second formations are positioned at the ends of the elongate frame members 302, 304. In other words, in embodiments the second formations are positioned at respective corners of the lower support element 300 and in particular the first frame sub-structure 300a. The second formations may be positioned on an upwardly facing surface of the lower support element 300 to receive the first formations.

In the present embodiment the first and second formations are substantially the same and so only one of the first formations and one of the second formations will be described. In embodiments the first and second formations may differ.

The first formation 500 may be a protrusion 500. The first formation 500 may extend away from a remainder of the support structure 200, preferably vertically. The second formation 600 may be a recess. The recess 600 may be a complementary shape to the protrusion 500 as shown in figure 7. In embodiments the recess 600 may not be a complementary shape to the protrusion 500. The protrusion 500 is generally frusto-conical. In other words, the protrusion 500 may taper as it extends away from the support structure 200. In embodiments the protrusion may have a substantially uniform cross-section, e.g., square, triangular, circular or other. Similarly, the recess 600 may be generally frusto-conical. The recess 600 may taper as it extends towards a surface on which the lower support element 300 is positioned. In embodiments the recess may have a substantially uniform cross-section, e.g., square, triangular, circular or other.

The apparatus 10 may include a locking member 650 for locking the first formation 500 relative to the second formation 600. In embodiments the locking member 650 is a detent pin, as shown in the figures. In embodiments the locking member may be another type of locking device, e.g., a clamp or clip. The locking member 650 is movable from a first, locked, position (as shown in figures 5 and 7) to a second, release, position (as shown in figure 6). The apparatus 10, and in particular the lower support element 300, may include a further opening 660 through which the locking member 650 may pass, in use, for engagement with the first formation 500. In particular, the locking member 650 may be generally elongate and have first and second ends 652, 654. The first end 652 may include a grip 653 for a user for gripping and moving the locking member 650 relative to the further opening 660. The second end 654 may, in use, in the first position engage the first formation 500. The first formation 500 may include a recess/locking recess, or groove, 510 for preventing removal of the first formation 500 from the second formation 600. The locking member 650 may, in use, be at least partially positioned in the recess 510. In use, the second end 654 may be received by the locking recess 510 in the first position.

If a user wishes to disconnect the support structure 200 from the lower support element 300 the locking member 650 is moved from the first, locked, position to the second, release, position such that the locking member 650 is no longer in engagement with the first formation 500 or received in the locking recess 510. A user is then free to remove the first formation 500 from the second formation by moving the support structure 200 away from the lower support element 300. If a user wishes to connect the lower support element to the support structure 200, e.g., when they are assembling the apparatus 10, then a user first aligns the first formation 500 with the second formation 600 and then positions the first formation 500 in the second formation 600. The locking member 650 is then moved from the second position to the first position such that the second end 654 of the locking member 650 is received in the locking recess 510 to prevent the first formation 500 from being removed from the second formation 600. In the present embodiment the locking member 650 is slidable from the first position to the second position and vice versa. In embodiments the locking member 650 may move in other ways without departing from the scope of

the present disclosure.

Such first and second formations as described above are advantageous. The formations permit easy positioning and assembly of the apparatus 10. Therefore, it is easy in an emergency situation for a user to determine visually whether the apparatus has been correctly assembled.

Referring to figure 3c in particular, the support structure 200 includes location formations 701 for locating the upper support element 100 relative to the support structure 200. In particular, the first support sub-structure 200a is provided with location formations 701 between first and second respective ends of the elongate side frame members 206a, 208a and in between, preferably midway between, the first and second ends between the elongate side frame members 206a, 208a. In the present embodiment the first end of the apparatus 10 is provided with three location formations 701, the second end is provided with two location formations 701 and the middle of the apparatus, in plan view, is provided with three location formations 701. In embodiments more or fewer location formations 701 may be provided. For example, in embodiments one or two or four or more location formations may be provided at the first end; one or three or more location formations may be provided at the second end; one or two or four or more location formations may be provided between the first and second ends. The upper support element 100 may include corresponding, or complementary, location recesses (not shown) for receiving the location formations and locating the support structure relative to the upper support element 100.

Referring to figures 12 to 14, the upper support element 100 may include a third formation 700 for positioning the upper support element 100 relative to the support structure 200. The support structure 200 may include a fourth formation 800 for receiving the third formation 700. In embodiments the support structure 200 or the upper support element 100 may include the third formation for positioning the support structure or upper support element relative to the other of the support structure of upper support element and the other of the support structure or the upper support element may include the fourth formation for receiving the third formation. In embodiments the upper support element 100 may include one or more third formations and/or one or more fourth formations. In embodiments the support structure 200 may include one or more third formations and/or one or more fourth formations.

In embodiments the third formations are positioned at respective ends of the upper support element 100. In particular, the third formations 700 may be positioned at or adjacent respective ends of the second portion 104 of the upper support element 100. In other words, in embodiments the third formations are positioned at respective corners of the upper support element 100. The third formations may extend, downwardly, towards the support structure 200 in use to be received by the fourth formations.

In embodiments the fourth formations are positioned at the ends of the elongate side frame members 206a, 208a. In other words, in embodiments the fourth formations are positioned at respective corners of the support structure 200 and in particular the first support sub-structure 200a. The fourth formations may be positioned on an upwardly facing surface of the support structure 200 to receive the third formations.

In the present embodiment the third and fourth formations are substantially the same and so only one of the third formations and one of the fourth formations will be described. In embodiments the third and fourth formations may differ.

The third formation 700 may be a protrusion 700. The third formation 700 may extend away from a remainder of the upper support element 100, preferably downwardly and vertically. The fourth formation 800 may be a recess. The protrusion 700 includes first and second ends 702, 704. The first end 702 may include a gripping portion 706 for a user to grip in use. The gripping portion 706 may be marquise shaped in plan view. In embodiments the gripping portion may be other shapes in plan view, e.g., square, rectangular, triangular, oval or obround. The second end 704 may be received in the recess 800 in use. The second end 704 may be generally frusto-conical. The second end 704 includes first and second projections 708, 710 which extend generally perpendicularly away from a main axis of the protrusion 700. The first and second projections 708, 710 are positioned on generally opposite sides of the second end 704, e.g., the are coaxial. In embodiments the second end need not be frusto-conical. For example, the second end 704 could be cylindrical, cuboidal or pyramidal without departing from the scope of the present disclosure.

The recess 800 may be generally cylindrical. In embodiments, the recess may have other shapes without departing from the scope of the present disclosure. The recess 800 includes an opening 802 which has a complementary shape to the second end 704 of the protrusion 700 so that the protrusion may pass through the opening 802 into the recess 800 in use.

The protrusion 700 is movable between first and second respective positions. In the first position the third formation, or protrusion, 700 can move freely with respect to the fourth formation, or recess, 800. In other words, the protrusion 700 is movable out of engagement with the recess 800. In the second position the third formation 700 is locked in position with respect to the fourth formation 800. In particular, the third formation 700 may be rotatably movable between the first and second positions. In the second position the first and second projections 708, 710 have been moved to prevent the protrusion 700 from passing through the opening 802 and so may prevent the third and fourth formations 700, 800 from being separated.

In use, if a user wishes to disconnect the upper support element 100 from the support structure 200 the protrusion 700 is rotated, via the gripping portion 706, from the second, locked, position to the first, release, position. This movement aligns the first and second projections 708, 710 with the opening 802. Once in the first position a user is free to move the third formation 700 upwardly away from the fourth formation 800 through the opening 802 by moving the upper support element 100 away from the support structure 200. If a user wishes to connect the upper support element to the support structure 200, e.g., when they are assembling the apparatus 10, then a user first aligns the third formation 700, in particular the projections 708, 710, with the opening 802 and then passes the protrusion 700 through the opening 802 into the fourth formation 800. The protrusion 700 is then rotated from the first position to the second position to move the projections 708, 710 out of alignment with the opening 802 and thereby locking the upper support element 100 to the support structure 200. In the present embodiment the protrusion 700 is rotatable from the first position to the second position and vice versa. In embodiments a locking member may be used to lock the protrusion 700 in position without departing from the scope of the present disclosure.

Such third and fourth formations as described above are advantageous. The formations permit easy positioning and assembly of the apparatus 10. Therefore, it is easy in an emergency situation for a user to determine visually whether the apparatus has been correctly assembled.

Referring to figures 15 to 17, and as mentioned above, the upper support element 100 is for supporting a stretcher or incubator or the like. The upper support element 100 includes first, second and third portions 102, 104, 106. In embodiments, the upper support element may only include first and second portions. In embodiments, the upper support element may include four or more portions. The upper support element may define a support surface 101 which extends across the first, second and third portions 102, 104, 106, or first and second portions 102, 104.

The first portion 102 may be foldable towards the second portion 104. The third portion 106 may be foldable towards the second portion 104. When folded, the first and third portions 102, 106 may be adjacent a remainder of the surface 101 above the second portion 104. In particular, the portions of the surface 101 which extend across the first and third portions 102, 106 may be substantially co-planar. In other words, the second portion 104 may be sandwiched between the first and third portions 102, 106 adjacent the surface 101 and the support structure 200.

The first portion 102 may be connected to the second portion 104 by a connection member 110. In the present embodiment the connection member 110 is a hinge. The connection member 110 may include first and second connection portions 1100, 1102. The first connection portion 1100 may be connected to the first portion 102. The second connection portion 1102 may be connected to a first end of the second portion 104 adjacent the first portion 102. The first and second portions 1100, 1102 may be rotatably connected to each other about an axis A. The axis A may extend in a direction generally parallel to the surface 101 or a plane P in which the surface 101 lies in use. The axis A may lie on the plane P, advantageously. In the present embodiment two connection members 110 are provided between the first and second portions 102, 104. The connection members 110 may be provided adjacent first and second respective sides of the first and second portions 102, 104, i.e., the sides above the elongate side frame members 206a, 208a when in position above the support structure 200 or in other words the sides about which the first portion 102 does not fold. In embodiments a plurality of connection members 110 may be provided. In embodiments only a single connection member 110 may be provided.

The third portion 106 may be connected to the second portion 104 by a further connection member 120. The further connection member 120 may include third and fourth connection portions 1200, 1202. The third connection portion 1200 may be connected to the third portion 106. The fourth connection portion 1202 may be connected to the second portion 104. The fourth connection portion 1202 may be connected to a second, generally opposite, end of the second portion 104 to the second connection portion 1102, adjacent the third portion 106. The third and fourth portions 1200, 1202 may be rotatably connected to each other about an axis B. The axis B may extend in a direction generally parallel to the surface 101 or a plane P in which the surface 101 lies in use. The axis B may lie on the plane P, advantageously. The axis B may extend in a direction generally parallel to the surface 101 or a plane P in which the surface 101 lies in use. In the present embodiment two further connection members 120 are provided between the second and third portions 104, 106. The further connection members 120 may be provided adjacent first and second respective sides of the second and third portions 104, 106, i.e., the sides above the elongate side frame members 206a, 208a when in position above the support structure 200 or in other words the sides about which the third portion 106 does not fold. In embodiments a plurality of further connection members 120 may be provided. In embodiments only a single further connection member 120 may be provided. In the present embodiment the further connection member 120 is a hinge. In particular, the further connection member 120 may be substantially the same as the connection member 110. In embodiments the connection member 110 and the further connection member 120 may differ.

Such an upper support element 100 is advantageous. This is in particular because the upper support element 100 can be stored more compactly which is beneficial in emergency vehicles such as air ambulances where there is little to no space to store additional adjustable support apparatus. In addition, the use of connection members and further connection members as described above prevents users from trapping their fingers between the first, second and third portions. This is achieved by removing the space between the portions when they are folded on top of each other.

When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.

The invention may also broadly consist in the parts, elements, steps, examples and/or features referred to or indicated in the specification individually or collectively in any and all combinations of two or more said parts, elements, steps, examples and/or features. In particular, one or more features in any of the embodiments described herein may be combined with one or more features from any other embodiment(s) described herein.

Protection may be sought for any features disclosed in any one or more published documents referenced herein in combination with the present disclosure.

Although certain example embodiments of the invention have been described, the scope of the appended claims is not intended to be limited solely to these embodiments. The claims are to be construed literally, purposively, and/or to encompass equivalents.

Claims

CLAIMS1. An adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like; a lower support element for supporting a ground engaging device for transporting the apparatus across a surface in use; and a support structure for supporting the upper support element on the lower support element; wherein the upper support element is releasably connectable to the support structure and/or the lower support element is releasably connectable to the support structure.
2. An apparatus according to claim 1 wherein the upper support element is releasably connectable to the support structure and the lower support element is releasably connectable to the support structure.
3. An apparatus according to any preceding claim wherein the support structure is movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element.
4. An apparatus according to claim 3 including an actuator connectable to the support structure for moving the support structure from the first condition to the second condition; optionally wherein the actuator is connected, preferably rotatably connected, to the lower support element and is releasably connectable to the support structure.
5. An apparatus according to claim 4 wherein the actuator includes first and second ends, wherein the first end releasably connectable to the support structure and wherein the second end is rotatably connected to the lower support element; optionally including an actuator locking member for locking the first end of the actuator relative to the support structure, optionally wherein the actuator locking member is a detent pin.
6. An apparatus according to claims 4 or claim 5 wherein the actuator is foot operable; and/or wherein the actuator is a hydraulic piston.
7. An apparatus according to any preceding claim wherein the support structure or the lower support element includes a first formation for positioning the support structure or lower support element relative to the other of the support structure or lower support element and wherein the other of the support structure or the lower support element includes a second formation for receiving the first formation; optionally wherein the first formation is a protrusion and the second formation is an opening.
8. An apparatus according to claim 7 including a locking member for locking the first formation relative to the second formation.
9. An apparatus according to claim 8 including a further opening through which, in use, the locking member may pass for engagement with the first formation.
10. An apparatus according to any one of claims 7 to 9 wherein the first formation includes a recess, wherein the locking member, in use, is at least partially positioned in the recess; and/or wherein the locking member is a detent pin; and/or wherein the first formation extends away from a remainder of the support structure, preferably vertically.
11. An apparatus according to any one of claims 7 to 10 including a plurality of first formations and/or a plurality of second formations and/or a plurality of locking members and/or a plurality of further openings.
12. An apparatus according to any preceding claim wherein the support structure or the upper support element includes a third formation for positioning the support structure or upper support element relative to the other of the support structure or upper support element and wherein the other of the support structure or the upper support element includes a fourth formation for receiving the third formation.
13. An apparatus according to claim 12 wherein the third formation is a protrusion and the fourth formation is a recess; and/or wherein the third formation is movable between first and second positions, wherein in the first position the third formation can move freely with respect to the fourth formation and in the second position the third formation is locked in position with respect to the fourth formation; optionally wherein the third formation is rotatably movable between first and second positions.
14. An apparatus according to claim 12 or claim 13 including a plurality of third formations and/or a plurality of fourth formations.
15. An apparatus according to any preceding claim wherein the support structure includes location formations for locating the upper support element relative to the support structure.
16. An apparatus according to any preceding claim wherein the support structure includes a scissor mechanism to alter the distance between the upper support element and the lower support element, wherein the scissor mechanism includes a first set of generally elongate members and a second set of generally elongate members; and wherein the first set of generally elongate members are positioned, in use, adjacent the lower support element and are pivotally connected to the second set of generally elongate members; and wherein the second set of generally elongate members are positioned, in use, adjacent the upper support element.
17. An apparatus according to any preceding claim when dependent, directly or indirectly, on claim 3 including one or more fastener members for fastening the apparatus in a stowed condition.
18. An adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like; a lower support element for supporting a ground engaging device for transporting the apparatus across a surface in use; and an actuator movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element; wherein the actuator is, directly or indirectly, releasably connectable to the upper support element or the lower support element and is connected to the other of the lower support element and the upper support element.
19. An apparatus according to claim 18 further including a support structure for supporting the upper support element on the lower support element; wherein the support structure is movable between a first, stowed, condition and a second, in use, condition to alter the distance between the upper support element and the lower support element; wherein the actuator is either: a) releasably connectable to the upper support element and is connected to the support structure or the lower support element; b) releasably connectable to the support structure and is connected to the lower support element or the upper support element; or c) releasably connectable to the lower support element and is connected to the support structure or the upper support element.
20. An apparatus according to claim 18 or claim 19 including one or more or all of the features of claims 1 to 17.
21. An adjustable support apparatus including: an upper support element for supporting a stretcher or incubator or the like including first and second portions, said upper support element defining a support surface which extends across the first and second portions on which a stretcher or incubator may rest; and a support structure for supporting the upper support element; wherein the first portion is foldable towards the second portion; wherein the apparatus includes a connection member which connects the first portion to the second portion; wherein the connection member includes a first connection portion and a second connection portion, wherein the first connection portion is rotatably connected to the second connection portion about an axis A; wherein the axis A lies on a plane P in which the support surface lies in use.
22. An apparatus according to claim 21 including a plurality of connection members.
23. An apparatus according to claim 21 or claim 22 wherein the upper support element includes a third portion; wherein the third portion is foldable towards the second portion; wherein the apparatus includes a further connection member which connects the third portion to the second portion; wherein the further connection member includes a third connection portion and a fourth connection portion, wherein the third connection portion is rotatably connected to the fourth connection portion about an axis B; wherein the axis B lies on the plane P.
24. An apparatus according to claim 23 including a plurality of further connection members.
25. An apparatus according to any one of claim 21 to 24 including one or more or all of the features of claims 1 to 20.