ES2292295B1 - MEDICAL BED WITH LIFTING SYSTEM AND INCLINATION OF THE SOMIER. - Google Patents

Abstract

Medical bed with lifting and tilting system of the bed base, comprising two independent structures (1, 2) interrelated by a bed base (3) to raise, lower or tilt, each formed by an outer metal frame (4) and another interior ( 5) with legs (6) or support wheels (7) on the ground, both frames (4, 5) being connected by skates and a linear actuator (11) to move a frame with respect to another, each outer frame being formed (4) by two uprights (8) and an upper crossbar (12) having the same special profile (D1) with grooves and outer channels, and each inner frame (5) being formed by two uprights (18), a lower crossbar and an upper cross member, of which the upper cross member consists of a simple profile, while the uprights and the lower cross member have the same special profile (D2) with grooves and outer channels.

Description

Medical bed with lifting system e bed slant

Field of the Invention

The present invention relates to a new medical bed designed for use in nursing homes, care and hospitality provided with an original system whereby, quickly, accurately and easily, it is possible vary both the elevation of the bed base plane and the inclination of the same, according to the needs that are presented or as best agree at every opportunity.

Background of the invention

In the state of the art the existence of varied background of trained medical beds to achieve functionalities similar to those offered by this invention, but always achieved through different and complex mechanical combinations very distant from simplicity, effectiveness and precision achieved by the bed system that is subject to this patent.

Summary of the invention

The bed of the invention offers the accused particularity that, to determine the height variations of the bed base as well as the inclination of its functional plane, the structure of each of its fundamental basic components as they are the headboard and the footboard of the same, they are conformed by adapting two twin armor, parallel and independent, an armor located in outer position while that his twin armor is placed facing the center of the furniture, being mounted and related to each couple of these constitutive headboard and footboard reinforcement by means of peculiar skating pieces that are articulated between said armor to allow a guided displacement of them within their respective planes.

Each of the independent structures of the headboard and footboard is formed by two metal frames, one outside and one inside, of which the inner frame constitutes the support of the system on the ground through legs or of wheels and the outer frame is the place where they are located the fixing means of the bed base, both being outer and inner frames slidably connected by two pairs of skates, located between the amounts of the frames to allow relative movement of lifting and lower outer frame through a pair of actuators linear that determine the movement of a frame with respect to other. The outer shell of each of these structures independent consists of two uprights and a crossbar superior that present the same special design profile with several slots and channels in its outer perimeter. On the other hand the inner frame of each of said independent structures It consists of two uprights, a lower crossbar and a upper crossbar, of which the upper crossbar consists of a Simple and easy to machine design profile, while the two uprights and the lower crossbar have the same profile of special design with several grooves and channels in its perimeter Exterior.

According to the invention, in each of the four vertices of the bed base the means of fixing the bed base are established to the outer frames, being constituted by two pieces anchor, structured at right angles, which are incorporated in a guide groove of the profile of the uprights of said frames and that can be arranged at any height within the extension of the headboard and footboard stiles.

Also, according to the invention, the profile of the uprights and the upper crossbar of the outer frames of the bed is provided with channels for the accommodation of a panel trim on the outside and one on the inside, constituting these trim panels, together with said uprights and said crossbar, the headboard and footboard of the bed.

Likewise, according to the invention, the profile of the  uprights and the upper crossbar of the outer frames of the bed is provided with a slot in which, in the case of upper cross member, an actuator connection piece is fixed linear to said upper crossbar and that, in the case of uprights, receive the skates located inferiorly.

Furthermore, according to the invention, the profile of the uprights and the upper crossbar of the outer frames of the bed is provided with a slot to optionally accommodate said upper cross member supports for the placement of a Handle of the footboard of the bed.

Moreover, according to the invention, the crossbar  upper of the inner frames of the bed presents a mechanization for the passage of the linear actuator head of the bed.

According to the invention, the profile of the uprights and of the lower crossbar of the inner frames of the bed is provided with channels for the accommodation of a trim panel towards the interior and another towards the interior, which, together with the pieces that constitute the headboard and footboard, hide and protect linear actuators and moving parts of the system of bed lift.

Preferably, the external trim panel of the interior frames of the bed has a geometry that enable as the top of the bed with the wall.

Also, according to the invention, the profile of the uprights and the lower crossbar of the inner frames of the bed is provided with a slot that serves, in the case of lower crossbar, to fix an actuator connection piece linear to said lower crossbar.

Likewise, according to the invention, the profile of the  uprights and the lower crossbar of the inner frames of the bed is provided with a slot that serves, in the case of uprights, to receive the upper skates of glide.

Furthermore, according to the invention, the profile of the uprights and the lower crossbar of the inner frames of the bed is provided with accommodation that serves, in the case of the uprights, for the placement of said wheels or legs in said amounts.

Moreover, according to the invention, the bed base of the bed constitutes the resistant structure of the same.

Finally, according to the invention, the two metal frames of each of the independent structures of the bed are made of aluminum, the sliding skates are made of plastic and the trim panels of each of said frames are thermoformed plastic, particle board coated with PVC, melamine, or any other material that present a geometry compatible with the channels of the profiles

Brief description of the drawings

The above and other objects and advantages of the invention will become more clearly apparent with the help of the following description of it with reference to the drawings Attachments, in which:

Figure 1 represents a schematic view in perspective of the bed of the invention,

Figure 2 represents a plan view of the footboard of the invention,

Figure 3 represents a sectional view taken along line A-A in figure 2,

Figure 4 represents a cross section of the profile of the uprights and the upper crossbar of the frame exterior of the bed of the invention;

Figure 5 represents a cross section of the profile of the uprights and the lower crossbar of the frame interior of the bed of the invention;

Figure 6 are two detail views illustrating the way in which the two frames of the bed of the invention,

Figure 7 is a detail view illustrating mounting a handle on the footboard of the bed invention,

Figure 8 is a detail view illustrating the mounting of the bed base anchoring piece in the uprights of the outer frames of the bed of the invention,

Figure 9 are two detail views illustrating the mounting of a skid of the inner frames and exteriors of the bed of the invention,

Figure 10 is a detail view illustrating the way in which the linear actuator crosses the upper crossbar of the inner frame of the bed of the invention,

Figure 11 is a detail view illustrating mounting a linear actuator fixing part on the lower crossbar of the inner frame of the bed of the invention,

Figure 12 shows perspective of the footboard of the bed showing the trim panels thereof, and

Figure 13 shows in two views the way in that the inclination of the bed occurs.

Detailed description of the invention

Referring to the drawings, you can see that the medical bed of the invention comprises two structures independent 1, 2 that constitute one the headboard and the other the footboard of the bed and that, interrelated by the bed base 3 a move, produce the movement of elevation, descent or inclination of this by means of the motorized actuation of the actuators linear 11 incorporated in each of said structures. The structures and bed base cited determine a set with the own bed base that turns out to be the resistant structure. In the figure 1 the representation of panels has been omitted trims on the headboard part of the bed to be able to better appreciate the internal constitution of both structures, in so much so that the trim panels 13 and 22 are visible in the part of the footboard of the bed.

Each of said independent structures 1, 2 is formed by two metal frames, preferably of aluminum, one exterior 4 and another interior 5, of which the interior constitutes the support of the bed on the floor through legs 6 or of wheels 7 and the outside is the place where the middle is located fixing 9 of the bed base 3. Both outer frames and interior are connected by the skates 10, preferably of plastic (see figure 9), which are located in its functional position 15 or higher 16, allow a movement relative of said frames in one direction, and by means of linear actuators 11 mentioned above, which confer the movement of one frame with respect to the other. This movement, at placing the bed base 3 connecting the structures 1, 2, makes the cited bed base change its position up or down with respect to the ground or, if required, leaning, thanks to the wheels of the which has the headboard and footboard that move over the ground compensating for the difference in length produced by the inclination of them. The tilt movement is not Compatible with the option of legs.

Since there is a linear actuator 11 in each of structures 1, 2, it is possible to perform opposite movements in actuators 11, achieving the movements of Trendelemburg and Anti-Trendelemburg in the bed base that joins these structures:

The outer shell 4 of each of said independent structures 1, 2 is formed by two uprights 8 and a top crossbar 12 presenting the same design profile special, designated with D1 in figure 4, which has several slots and channels in its outer perimeter. This D1 structure profile hollow, it has a flat main face that is the one to be face the complementary profile D2, in whose center there is a slot Y that trapecially expands in its bottom, and in the ends, symmetrically two narrow grooves R. On the face opposite arched conformation there is another symmetric Z slot and of identical section to slot Y. One of the sides of this section is completely smooth, while the other with orientation perpendicular has another slot X for forming and amplitude similar to those described above.

For its part, the inner frame 5 of each of said independent structures is formed by two uprights 18, a lower crossbar 19 and an upper crossbar 20, so that the parallelism between both uprights 18 is preserved. The upper crossbar 20 consists of a simple design profile and easy to machine, while the two uprights 18 and the lower crossbar 19 have the same special design profile, designated with D2 in figure 5, which has several slots and channels in its outer perimeter. This hollow structure D2 profile, it has a flat main face that is the one that has to face to the complementary profile D1, in whose center there is a slot W which expands trapecially in its bottom (in identical ways to those described for profile D1), and at the ends, symmetrically two narrow slots S. The opposite face has a staggering rectangular central in whose center there is another symmetric V slot and opposite, with identical section to slot W.

Fixing the bed base 3 to each outer frame 4 of the bed of the invention is made by means of four pieces anchor 9 that are located on a built-in guide groove X in the geometry of the profile D1 of the uprights 8 of said framework and which allows its mooring at any height of said uprights, and in both structures 1, 2.

The D1 profile of the studs 8 and the crossbar upper 12 of each outer frame 4 of the bed of the invention R channels are planned for panel insertion trim 13, one on the outside and one on the outside interior, which are preferably made of plastic thermoforming or melanin. These trim panels 13 they constitute, together with said uprights and said crossbar, the constitutive frames of the headboard and the footboard of the bed.

The aforementioned D1 profile is also provided with a slot Y in which, in the case of the upper crossbar 12 of the frame 4, a connection piece 14 is fixed to join the actuator linear 11 to said upper crossbar and that, in the case of uprights 8 of said frame, receive sliding skates lower 15.

In addition, said profile D1 is provided with a Z slot for optionally accommodating the upper cross member 12 of the outer frame 4 supports 17 for the placement of a handpiece holder 24 of the bed of the invention.

As regards the upper crossbar 20 of the inner frame 5 of the bed of the invention, it presents a mechanization 21 (see figure 10) to allow the passage of the head of the linear actuator 11 of the bed.

On the other hand, the profile D2 of the uprights 18 and of the lower cross member 19 of each inner frame 5 of the bed of the invention is provided with grooves S to house some trim panels 22, 23 inwards and towards the exterior, preferably made of thermoformed plastic, the which constitute the fairing of the linear actuator 11.

Preferably, the external trim panel 13 of the inner frame 5 has a protuberance 22 that enable as the top of the bed with the wall.

Likewise, the aforementioned D2 profile is provided with a V slot that is used in the lower crossbar for the inclusion of a piece 14 that serves to connect the linear actuator 11 to said lower cross member.

The aforementioned D2 profile is also provided with a W slot used for the inclusion of skates upper glides 16 in frame 18 studs interior 5 of the bed of the invention. These 16 skates cooperate with the skates 15 of the outer frame 4 to allow sliding of both frames 4, 5 of each structure independent 1, 2 with respect to another.

The mentioned D2 profile is completed with a housing U for the placement of legs 6 or wheels 7 on the uprights 18 of the inner frame 5 of the bed of the invention.

The operation of the medical bed of the invention is extremely simple, since it will be enough to activate the electric motors coupled with linear actuators 11 for that the latter move the outer frames 4 of the bed in ascending or descending direction, with the consequent rise or lowering of bed base 3 because it is in solidarity with said outer frames. Activating both electric motors at the same time, the bed base 3 will be raised or lowered parallel to the ground, while that if only one of the motors is activated, it will go up or down then the end of the bed base corresponding to the activated motor, so that the bed base will adopt the inclined position that wish.

The above description has collected those that are considered as the essential characteristics of the invention. Do not However, it will be understood that the invention also encompasses all variants and modifications that could occur to experts in matter and that fall within the spirit and scope of attached claims.

Claims (13)

1. Medical bed with lifting and tilting system of the bed base that is integrated by two independent structures (1, 2) that constitute one the headboard and the other the footboard of the bed and that, interrelated by the bed base (3) to move, they produce the movement of elevation, descent or inclination of the latter by means of the actuation of a linear actuator (11) incorporated in each of said structures, characterized in that each of said independent structures (1, 2) is formed by two metal frames, one exterior (4) and another interior (5), of which the interior constitutes the support of the system on the ground through legs (6) or wheels (7) and the exterior is the place where the means of fixing the bed base (3) of the bed, both outer and inner frames (4, 5) being connected by two pairs of skates (10), which allow a relative movement of said frames in one direction, and by a linear actuator (11 ) confier e the movement of one frame with respect to the other; the outer frame (4) of each of said independent structures (1, 2) being formed by two uprights (8) and an upper crossbar (12) having the same profile (D1) of special design with several grooves and channels in its outer perimeter, and the inner frame (5) of each of said independent structures (1, 2) being formed by two uprights (18), a lower cross member (19) and an upper cross member (20), of which the upper crossbar consists of a simple design profile and easy to machine, while the two uprights and the lower crossbar have the same profile (D2) of special design with several grooves and channels in its outer perimeter. 2. Medical bed according to claim 1, characterized in that the fixing means of the bed base (3) to the outer frames (4) of the bed is constituted by anchors structured at right angles (9), which are incorporated in a guide groove (X) located on the side of the profile (D1) of the uprights (8) of said frames and which can be arranged at any height within the extension of said uprights. 3. Medical bed according to any of claims 1 and 2, characterized in that the profile (D1) of the uprights (8) and of the upper crossbar (12) of the outer frames (4) of the bed is of a hollow structure, presenting a flat main face that has to face the complementary profile (D2) provided at its center with a groove (Y) that trapecially expands at the bottom and at its edges has two narrow symmetrical grooves (R), for the accommodation of a trim panel (13) on the outside and one on the inside, these trim panels, together with said uprights and said crossbar, the headboard and the footboard of the bed. 4. Medical bed according to any of claims 1 to 3, characterized in that the profile (D1) of the uprights (8) and the upper crossbar (12) of the outer frames (4) of the bed is provided with said groove ( Y) in which, in the case of the upper cross member, a connecting part (14) of the linear actuator (11) is fixed to said upper cross member and which, in the case of the uprights, receives the situation sliding skates lower (15). 5. Medical bed according to any of claims 1 to 4, characterized in that said profile (D1) has its arcuate outer face and provided with a groove (Z) for optionally accommodating in said upper cross member (12) of the outer frames (4) supports (17) for the placement of a handle (24) of the bed footrest. 6. Medical bed according to any one of claims 1 to 5, characterized in that the upper cross member (20) of the inner frames (5) has a machining (21) for the passage of the head of the linear actuator (11) of the bed. 7. Medical bed according to any one of claims 1 to 6, characterized in that the profile (D2) of the uprights (18) and the lower crossbar (19) of the inner frames (5) of the bed is hollow in structure, has a flat main face that is the one that has to face the complementary profile (D1), in whose center there is a groove (W) that trapecially expands in its bottom in a similar way to that of the profile (D1) and on the sides and symmetrical two narrow grooves (S), presenting on the opposite side a rectangular central step, with another central groove symmetrical to the (W), the groove (S) being provided for accommodating trim panels (22, 23), one inwards and one inwards, which, together with the pieces that constitute the headboard and footboard, hide and protect the linear actuators (11) and the moving parts of the bed lift system. 8. Medical bed according to any one of claims 1 to 7, characterized in that the outer trim panel (23) of the inner frames (5) of the bed has a prominence (22) that enables it as a stop of the bed with the wall. 9. Medical bed according to any of claims 1 to 8, characterized in that said profile (D2) is provided with a groove (V) in which a connecting part (14) of the linear actuator (11) is fixed to the lower cross member (11). 19) of the inner frames (5) of the bed. 10. Medical bed according to any of claims 1 to 9, characterized in that said profile (D2) is provided with a slot (W) for receiving upper sliding skates (16) in the uprights (18) of the inner frames (5) ) from the bed. 11. Medical bed according to any of claims 1 to 9, characterized in that said profile (D2) is provided with a housing (U) for placing said legs (6) or wheels (7) in the uprights (18) of the interior frames (5) of the bed. 12. Medical bed according to any of claims 1 to 11, characterized in that the bed base (3) constitutes the resistant structure of the bed. 13. Medical bed according to any one of claims 1 to 12, characterized in that the two metal frames (4, 5) of each of the independent structures (1, 2) of the bed are made of aluminum, the sliding skids (15, 16) they are made of plastic and the trim panels (13, 22, 23) of each of said frames are made of thermoformed plastic, clamped particle board made of PVC or melamine or any other material that has a geometry compatible with the channels or slots of the
profiles