WO2019194672A1 - Base mobile de chariot pour le déplacement d'une personne - Google Patents

Base mobile de chariot pour le déplacement d'une personne Download PDF

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Publication number
WO2019194672A1
WO2019194672A1 PCT/MX2018/050024 MX2018050024W WO2019194672A1 WO 2019194672 A1 WO2019194672 A1 WO 2019194672A1 MX 2018050024 W MX2018050024 W MX 2018050024W WO 2019194672 A1 WO2019194672 A1 WO 2019194672A1
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WO
WIPO (PCT)
Prior art keywords
mobile base
segment
arms
coupled
base according
Prior art date
Application number
PCT/MX2018/050024
Other languages
English (en)
Spanish (es)
Inventor
Gonzalo Garcia Castilla
Armando HERRERA AGUILERA
Original Assignee
Accesos Sin Limite S.A. De C.V.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Accesos Sin Limite S.A. De C.V. filed Critical Accesos Sin Limite S.A. De C.V.
Publication of WO2019194672A1 publication Critical patent/WO2019194672A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B1/00—Sticks with supporting, hanging or carrying means
    • A45B1/02—Walking sticks with rollers for carrying parcels or the like
    • 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
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches

Definitions

  • the present invention relates to the field of mechanics, particularly to the area of cranes designed for the transfer of people with reduced mobility, where normally the transfer of said person is carried out from his wheelchair to a car and / or vice versa, and where factors that have been identified as irregularity of the land, type of car, size of the user etc., are considered.
  • cranes found in the art are normally cumbersome and limited in terms of their ability to adapt to different scenarios that depend on factors such as: vehicle conditions and size; terrain characteristics, where you can find sloping or partially sloping terrain, semi-built sidewalks, in addition to other irregularities; and characteristics of the same person that will be supported by the crane, such as its weight, height and / or build.
  • the present invention relates to a crane system for supporting and moving people with limited mobility or motor disability.
  • the crane system is mainly composed of modular elements that join together in a separable way:
  • a movable base or pedestal which is in contact with the surface and provides the necessary mechanical means so that the crane with or without a load can be pushed or pulled on said surface without said load falling or tilting a tilt angle of tolerance ; a tower that includes a lifting mechanism that can be controlled either manually or electrically; and a clamp or hitch module, which is where the person is held and supported directly.
  • the tower detachably coupled to the mobile pedestal, includes mechanical means to lift, suspend and descend different types of loads, particularly corresponding to the average weight of a person.
  • the crane system includes a hitch module coupled to the tower module, where the user will be directly anchored to be raised, suspended and / or lowered by the tower module.
  • the mobile base or pedestal includes a base center where at least two rigid horizontal arms are coupled in their front part separated by an initial separation distance projecting outside said base center overcoming a vertical line defined by the location of the center of mass of the crane including the estimated weight of the user, and where each arm, at its distal end includes at least one wheel that is in contact with the floor.
  • the arms serving as the main stability support whose shape, length and location, allows the center of mass of the crane with or without a load to be in a stable area that maintains the vertical.
  • the at least one wheel is of the idler wheel type that includes an additional axis of rotation providing an additional degree of freedom or ability to travel along curved paths or curved paths.
  • each arm is defined by a rigid straight bar.
  • each arm also includes an extension mechanism, such as a telescopic mechanism, which allows the length of said arm to be adjusted, either extending or contracting it, thus allowing the center of mass of the system to be adjusted with respect to to the modification of the length of the arms.
  • the angle of separation between arms is fixed.
  • the angle of separation between arms is adjustable, where mechanical means known in the art are used to allow the arms to include an additional degree of freedom to allow said opening or closing adjustment, thus adjusting the angle of separation between arms.
  • an opening / closing mechanism of angle of separation of arms that causes the arms to move away or approach each other symmetrically and simultaneously, that is, by modifying the angle of separation between arms symmetrically.
  • each arm is adjusted independently.
  • the mechanism is mechanically configured so that the minimum separation angle is such that the separation distance between distal ends of arms is equal to or greater than the initial separation distance.
  • each arm is composed of a plurality of articulated sections through vertical pivots, which allow each arm to be adjusted independently to adapt to the particular conditions of terrain, automobile and / or user.
  • the mobile base or pedestal also includes in the opposite part of the center of the base or after the location of the at least two arms, a mechanical arrangement of wheels that provide stability to the crane and allow its transfer.
  • the mechanical arrangement of wheels is an arrangement of the type with differentiated axles, wherein said configuration of differentiated axles allows the absorption of certain imperfections in the terrain and also adapts more naturally to the natural dynamics of a mechanism in motion, mainly in curves or turns.
  • the differentiated axes defined by a crank-type axis formed by a rigid bar with three parallel sections separated a predetermined distance, where the rear wheels are coupled to the parallel sections of the ends, leaving the middle section as the main axis, where it is coupled by means of a bearing to the base or mobile pedestal.
  • each one facilitates the movement of the system of the present invention and in addition certain terrain irregularities such as holes, stops, etc., without changing the stable position of the center of mass.
  • the differentiated axes provide a natural dynamic movement when turning at a certain speed since they allow an inclination to compensate, with the same weight of the body, the corresponding centrifugal force.
  • the crane when the crane system advances at a certain speed and turns to the right, the crane can be allowed to lean to the same right to compensate for the centrifugal force experienced by the center of mass and thus maintain a stable position without losing the vertical
  • a crane system will hardly reach speeds that require this benefit, in such a way that it has also been identified that if the inclination that allows the arrangement of wheels that rotates around different axes is blocked, the result is that before any imperfection in the ground, such as hole or protrusion (within a range of depth and height respectively), the wheel array absorbs (at least 50% when the axles are 180 ° apart) either depth of the hole, or the height of the protrusion and also maintaining substantially the horizontal, that is, the wheels with different axles are forced to modify their operating height, but all the axle segments remain substantially parallel to the horizontal and the axis intermediate or main, you only experience part of the imperfection in the field.
  • the differentiated axes are obtained by means of a crank-type axis defining three parallel segments with wheels at each end of the non-intermediate segments.
  • the wheel on the right side adjusts its height due to an imperfection in the terrain
  • the wheel on the left side compensates, at least partially, for said adjustment by maintaining the substantially horizontal middle segment and where said middle segment only experiences an elevation equal to half height that raised / lowered the wheel.
  • a mobile pedestal with the back including an arrangement of wheels with differentiated axles, and in the front part with arms with wheels that support the center of mass and also block the natural rotation of said wheel arrangement, a mobile pedestal is obtained that before irregularities of land in the back, the horizontal is maintained, at least partially, by the suspension effect that it provides, since it is forced that the differentiated axes do not tilt, but adjust to the height when turning with respect to the main axis or intermediate segment, but also rotate with respect to the same axis of the wheel.
  • the left side wheel can be located in front of the main axle or behind the main axis, the reverse happening with the right side wheel.
  • the tower includes an interlocking lifting mechanism known in the art by different means, such as, but not limited to: hydraulic piston, pneumatic piston, pulley system, winch, winch, electric motor, hoist, etc.
  • a winch system is used with a tape wound on a roller that includes enclave means and a crank that implements said enclave means through a key or lock to lift, maintain and / or lower the load.
  • the coupling module includes a scissor mechanism, defined by two cross bars that rotate around an axis, where each bar includes a first bend made with a first bend angle thus defining a first bar segment. so that with said first fold the first bar segment is parallel, at least partially, with the horizontal so that the user can rest there his armpits where he will be, at least partially, lifted by the crane system.
  • a second segment of each bar defined by a second fold made at a second bend angle whose angle allows each said second segment to be, at least partially, parallel to the vertical and / or perpendicular to the First segment of bar.
  • the union of the first segment and the second segment is through a hinge type union, so that the resulting backrest will be maintained, by gravity, in a vertical position.
  • the hitch module is detachably coupled to the tower's lifting mechanism.
  • the hitch module is coupled to the tower by means of a straight hitch bar.
  • the straight hitch bar includes, at one or both ends of the bar, mechanical means of vertical pivot type connection to allow rotation, at least partially, around said pivot.
  • said hitch bar includes mechanical means for adjusting length which allow the length of said bar to be adjusted during use of the crane system.
  • the mechanical means of length adjustment are defined by a telescopic array of bars.
  • marks are placed on the arms indicating the limits to which the center of mass defined by a vertical line projected downwards will cross with said marks.
  • Fig. 1 shows a perspective view of a crane for the movement of people in accordance with an embodiment of the present invention, where the different types of movement that said crane can have represented by the existing degrees of freedom are defined, including the angular degrees of freedom that revolve around the X, Y, and Z axes, and the linear degrees of freedom that travel along the same axes.
  • Fig. 2 shows a perspective view of an embodiment of the crane system for moving people of the present invention.
  • Fig. 3 shows a side view of an embodiment of the crane system for moving people of the present invention
  • Fig. 4 shows a side view of an embodiment of the crane system for moving people of the present invention, where the operating angle of the hitch module has been adjusted.
  • Fig. 5 shows a side view of an embodiment of the crane system for moving people of the present invention, where the angle and length configurations corresponding to the hitch module are appreciated.
  • Fig. 6 shows a side view of one embodiment of the hitch module in accordance with the present invention, wherein the length and angle configuration of the scissor mechanism bars allows to include a backrest and a head support.
  • Fig. 7 shows a bottom view of an embodiment of the crane system for moving people of the present invention, where the pair of rear wheels with differentiated axle and the pair of front wheels coupled at distal ends of arms are appreciated.
  • Fig. 8 shows a front view of the mobile pedestal module where the opening and closing mechanism of arms is seen more clearly in a single movement.
  • Fig. 9 shows a top view of a diagram showing the axle configuration of a wheel arrangement with a differentiated axle in accordance with an embodiment of the present invention.
  • Fig. 10 shows a front view of the diagram showing the configuration of the axle of a wheel arrangement with a differentiated axle, wherein said arrangement is in a non-inclined position.
  • Fig. 1 1 shows a front view of the diagram showing the axle configuration of a wheel arrangement with a differentiated axle, wherein said arrangement is in an inclined position.
  • Fig. 12 shows a front view of the diagram showing the axle configuration of a wheel arrangement with a differentiated axle, where the inclination of the wheel arrangement with a differentiated axle is locked.
  • Fig. 1 shows a perspective view of a crane system 1 in accordance with an embodiment of the present invention, where the different types of movement it can have are appreciated.
  • an X axis or longitudinal axis, a Y axis or lateral or transverse axis, and a Z axis or vertical axis are appreciated, so that the rotation or degree of freedom around the X axis is defined as the longitudinal rotation or warping, the rotation or degree of freedom around the Y axis is defined as lateral rotation or pitching, and the rotation or degree of freedom around the Z axis is defined as vertical or yaw rotation.
  • the horizontal is defined as the XY plane, which is understood as parallel with the flat surface of the terrain.
  • a vertical or vertical element is referred to as any element parallel to the Z axis.
  • Fig. 2 shows a perspective view of an embodiment of the crane system of the present invention, where the crane system 1 is appreciated.
  • the crane system divided into modules defined by a first hitch module 30 comprised of a hook bar 32 or straight bar defined by a linear bracket type bracket, which at a first end or distal end of the bar is coupled to a scissor mechanism 31 and where the coupling is made through a mobile vertical pivot 33 , which in addition to detachably joining the hitch module 32 and the scissor mechanism 31, provides a first degree of angular freedom of hitch module 30 by allowing the scissor mechanism 31 to rotate vertically like a hinge with respect to the first end of hitch bar 32.
  • the scissor mechanism 31 is where the user will be held facing the crane, such that the center of mass CM is calculated so that it is located ca in the area of the scissor mechanism 31.
  • the hitch bar 32 at its second end or proximal end of the bar, is detachably coupled, by some technique already known in the art, to the second module corresponding to a tower 50 , by means of a fixed pivot 34.
  • the tower 50 in turn is detachably coupled, by some technique already known in the art, to a third module corresponding to a mobile base or pedestal 10, which includes a first pair of front wheels coupled through a left arm 1 1 and a right arm 12, and a second pair of rear wheels 13 and 14 coupled to the mobile pedestal 10 through a mechanical wheel arrangement that includes a differential crank-type axle of wheels 15, which is coupled to the base center 20 by means of a bearing parallel to the Y axis.
  • the fixed pivot 34 also includes a second degree of vertical angular freedom of hitch module 30 that allows the hitch bar 32 (and thereby, the hitch module 30) to rotate vertically with respect to the tower 50 as a hinge.
  • mechanical limiters (not shown in Fig. 2) are included, which limit the hinge type rotation of the hitch bar 32 so that the hinge type rotation is made within a range of motion so that the center of mass of crane system 1 is maintained in a stable position.
  • the limiters (not shown in Fig. 2) will allow the hook bar 32 to be fixed either in the straight position (by default) or in a desired rotated position.
  • the tower 50 includes a mechanism 51 of ascent, descent and load support already known in the art. Said mechanism 51 is controlled either manually by a crank 52, where one direction of rotation of the crank 51 raises the load and the other direction of rotation lowers the load, or automatically by an electric motor (not shown in the figures).
  • the crank 52 is detachably coupled to the crane system 1, using a standardized connection so that when said crank 52 is removed, an electric motor or motor arrangement with the same Standard mechanical connection is coupled to the crane system 1 to automate the function of the tower 50.
  • the mechanism 51 is of the winch type that includes a crank with an enclave system in both directions of rotation.
  • the tower 50 includes a support 55 to facilitate the handling of the crane system 1 by the crane operator.
  • Fig. 3 shows a side view of an embodiment of the crane system 1 of the present invention, where the configuration of elements is appreciated.
  • an angle Q defining the angle of inclination that the tower 50 will maintain with respect to the base in a side view, either fixedly for one mode of invention or adjustable for another mode of invention.
  • said angle Q is maintained in the range of 90 ° to 130 °.
  • Said angle Q depends on one or a combination of factors such as the amount of load, the size of the user i.e. the height of the user, the inclination of the terrain, the type of vehicle, etc.
  • said angle Q may vary without affecting the subject matter of the present invention.
  • an angle P is appreciated which will define the angle of inclination of the hitch module 30 either fixedly for one mode of invention or adjustable for another mode of invention.
  • said angle P is adjusted in accordance with angle Q and vice versa so that the combination of both angles results in a hitch module whose line is substantially parallel with the horizontal.
  • an initial or default angle Q is established, which can be fixed.
  • the combination of angles P and Q allows the distal end of the hitch module 30 to be below the proximal end of the same module.
  • Fig. 4 shows the system of Fig. 3 where the angle P has been adjusted in such a way that the straight of the hitch module allows the user to tend to be directed by gravity out of the crane, or towards the distal end of the hitch module 30, which is located below the proximal end.
  • the hitch bar 32 is defined by a telescopic or equivalent mechanical arrangement that allows the original or default length Lb (shown in Fig. 5) of said bar 32 to be modified so that the frontal reach of the crane increase.
  • the original or default length is the length calculated to keep the center of mass of the crane system 1 loaded, in a stable position while maintaining the vertical before, during and after the user's transfer.
  • Said telescopic mechanical arrangement or equivalent already known in the art is also useful for users whose height is greater than average, where it has been identified that their knees collide with the tower at the time of being supported, since it will move the user away from the system of crane (the user is supported looking towards the crane system 1).
  • the mobile pivot 33 includes mechanical movement limiters which allow the scissor mechanism 31 to be fixed in one position, and in which said limiters also allow fixing in a straight position or in a rotated position with respect to the distal end of the hitch bar 32.
  • the scissor mechanism 31 is defined by two bars, a left bar 36 and a right bar 37, crossed which rotate about an axis and that at one of its ends include a mechanical link that allows the mechanism of scissors tends to be in an open default position, so that when positioning the user, said scissor mechanism 31 will be closed by the same weight of the user until laterally embracing the user's complexion at the height of the thorax.
  • Fig. 5 the configuration of the bars 36 and 37 according to an embodiment of the present invention is appreciated, wherein said left and right bars 36 and 37 respectively are configured in such a way that they include a first fold defined by a first bending angle T1 so that a first segment of each scissor bar Lt1 is formed which is, in a mode of invention, substantially parallel to the horizontal, where the user will rest his armpits once positioning the same scissor mechanism 31 of compliance with the user's complexion (the user looking towards the crane system 1).
  • the first bending angle has a tolerance with respect to the horizontal of ⁇ 15- and / or the second bending angle has a tolerance with respect to the vertical of ⁇ 15- and / or with respect to the perpendicular of the first segment of bar Lt1 of ⁇ 15-.
  • mechanical means for attaching a leg harness are coupled to the first segment of each scissor bar Lt1.
  • the user's armpits and / or a harness will rest, which is coupled by means of bands or strips below the user's legs to add support points or contact between the user and the module hitch 30.
  • the points of contact of the crane system with the user are armpits, back and legs.
  • the user is in contact with the crane system 1 of the present invention: from the armpits by means of the scissor mechanism 31; from the legs by means of rigid hooks hanging from said scissor mechanism 31, wherein the hooks partially surround each leg of the user holding mainly from below to load the Username; and / or from the back through the backrest that is coupled to the scissor mechanism 31 by means of the bar segments Lt2.
  • the crane system 1 of the present invention many of the elements described in this document will have elastic deformations or modifications by certain sets ie differences or gaps, which exist in the joints or joints of the elements, which can alter the revealed angles and lengths, without affecting the subject of the present invention.
  • the angle T1 is in the range of 90 ° -130 °, thus allowing the user to fall by gravity towards the area of the backrest defined by the second segment of bar Lt2.
  • a hinge type coupling is coupled between the first bar segment Lt1 and the second bar segment Lt2 so that the resulting backrest is coupled by gravity to the vertical regardless of the inclination of the hitch module 30, a the inclination Q of the tower 50 and / or the inclination of the surface where the crane system 1 of the present invention is located.
  • Fig. 5 the angle of separation between wheels in the arrangement of wheels by differential axle 15 is shown, where they are connected to each other a fixed separation of 180 °. In one embodiment of the invention, said angle is different than 180 °.
  • Fig. 6 shows an embodiment of the invention in which the scissor mechanism 31 additionally includes a third bar segment Lt3 opposite or substantially opposite the second bar segment Lt2 defined by the angle T2, and wherein the inclination angle of said third segment Lt3 is defined by a third angle T3.
  • the angle T3 is equal to the angle T2.
  • angles T2 and T3 are different.
  • the length of the first left bar segment Lt1 is not necessarily the same length as the first right bar segment Lt1, since there is a difference in lengths corresponding to the thickness of had used to manufacture each scissor bar.
  • the length Lt1 is standardized for illustrative reasons without affecting the subject of the present invention.
  • first segment Lt1, second segment Lt2 and third segment Lt3 of scissor bar can vary independently or dependently on each other, without affecting the subject matter of the present invention.
  • first segment, the second segment and / or the third segment include Telescopic mechanical means to allow the lengths of said segments to be modified during use.
  • Fig. 7 shows a bottom view of an embodiment of the crane system 1 of the present invention, where the left and right arms 1 1 and 12 respectively with a length L are appreciated which are joined at their proximal ends to the part front of the base center 20 through the vertical pivots 21 and 22 which allow the rotation of said arms at an angle U.
  • said pivots 21 and 22 allow the free rotation of the arms around the pivot axis. .
  • said pivots 21 and 22 allow gradual rotation, through staggered fixed stages released / locked by a bolt or clasp.
  • the mobile base or pedestal 10 includes a symmetrical opening and closing mechanism of arms 16 which by means of a pedal 17 allows the arms 1 1 and 12 to be separated or symmetrically joined at an angle U in both sides at the same time thus maintaining the center of mass in a stable position in a single movement.
  • the symmetrical opening and closing mechanism of arms 16 includes a gradual opening and / or closing system by means of different stages controlled by the same pedal 17.
  • the mechanism 16 is mechanically configured. so that the minimum separation angle is such that the separation distance between distal ends of arms is equal to or greater than the initial separation distance Lb1. In a particular mode, the initial separation distance is in the range of 0 to 80 cm.
  • the mechanism 16 is mechanically configured so that the minimum separation angle is such that the separation distance between distal ends of arms is substantially equal to the distance Lb2. In one embodiment of the invention, the mechanism 16 is mechanically configured so that the minimum separation angle is such that the separation distance between distal ends of arms is in a range within the distances Lb1 to Lb2.
  • each wheel 13 and 14 is separated from the intermediate axle a distance W.
  • Said distance W varies according to the height of the mobile pedestal, as well as the type of tire used for wheel 13 and 14, where it is calculated and / or selected in accordance with the average imperfections found in cities, particularly on sidewalks (including the average height of the sidewalks) and / or irregularities in the land on the banks of the streets where the transfer of a wheelchair to a vehicle would take place.
  • the arrangement of wheels with differentiated axles 15 is coupled to the mobile base or pedestal 10 by means of a bearing parallel to the Y axis, where the bearing is rigidly coupled.
  • the coupling of said bearing includes a clearance or clearance that allows partial longitudinal rotation. of the base or mobile pedestal.
  • the arrangement of wheels with differentiated axles 15 is coupled to the mobile base or pedestal 10 by means of a horizontal bearing parallel to the Y axis, where the intermediate axis segment 152 is coupled so as to allow said wheel arrangement rotate laterally with respect to said intermediate or main axle 152 (shown in Fig. 9) and also with respect to each wheel whose axle is 151 and 153.
  • the intermediate axle segment 152 has a length which is in the range of 40 to 80 cm.
  • the bearing substantially covers the entire intermediate segment of axis 152. In a particular embodiment, the distance W is within the range of 10 to 40 cm.
  • the distances Lb1 or distance of initial separation of arms, and Lb2 or distance of separation of differentiated wheels define the minimum or substantially minimum width of the pair of front wheels, through arms 1 1 and 12, and the width of the pair of wheels with differentiated axle 15.
  • both distances have a relationship that allows maintaining the center of mass of the system 1 with load in a stable position, where the average width of a user is in the range of 35-55 cm so that said distances Lb1 and Lb2 cover said average width, and also allow the crane to be moved inside a building, where the minimum average width of a door frame is between 60 and 100cm, and also that a Wheelchair can be placed between arms 1 1 and 12 without getting in the way of others.
  • each first segment of scissor bar Lt1 includes cushions that surround the bar for user comfort when resting their armpits there, where the cushions cover either the entire length Lt1 or a part.
  • each cushion is coupled on a linear bearing 40 and 41, thus defining a linear bearing with a cushioned cover, such that said bearing can travel along the length of the first scissor bar segment Lt1.
  • Fig. 8 shows a front view of the mobile pedestal 10, where the symmetrical opening and closing mechanism of arms 16 is more clearly seen.
  • Fig. 9 shows a top view of a diagram of the arrangement of wheels with differential axle 15 in accordance with an embodiment of the present invention, wherein the main axle is divided into three parallel segments 151 or first end segment; 152 or main or intermediate segment; and 153 or second segment and end.
  • the wheels are coupled at the ends of segments 151 and 153, so that segment 152 is where the mobile base or pedestal 10 is coupled, where the other elements of the crane system 1 are coupled.
  • the diameter D of the wheel, as well as the separation distance between different axes W varies according to the type of irregularities in the terrain that are to be covered, as well as the standard height H of the crane system 1 that is desired.
  • a technician in the matter will note that the length of the diameter D, of the distance W, as well as the length of the parallel segments 151, 152 and 153, may vary without affecting the subject matter of the present invention.
  • Fig. 10 shows a front view of the arrangement diagram of Fig. 9, wherein said arrangement is in a non-inclined position.
  • Fig. 1 1 shows a front view of the diagram of the arrangement of Fig. 9, wherein said arrangement is in an inclined position and it is seen that the segment 152 tilts an angle a, so that the entire crane system 1 will bow in the same way.
  • the arrangement of wheels with differentiated axle being static will tend to lean towards the side where it is most heavy or towards the side where an external force has pushed or pulled it.
  • the arrangement of wheels with a differentiated axle being in straight motion at a certain speed, will tend to remain in a substantially non-inclined position, that is, maintaining a vertical position. Also, being in a curvilinear motion, such an arrangement will tend to lean. Example, if the curvilinear movement is to the right at a certain speed, the arrangement will lean towards the same side compensating the centrifugal force experienced.
  • Fig. 12 shows a front view of an arrangement of wheels with a differentiated axle where at least partially the inclination of said arrangement which, applied to the crane system 1 of the present invention, would block the rotation around the X axis has been blocked. or longitudinal rotation.
  • the blocking is carried out by means of at least two arms 1 1 and 12 which prevent the mobile base or pedestal 10 from turning said angle a.
  • the rotation is avoided by attaching the arms 1 1 and 12 to the base by means of a vertical pivot that only allows said arms to rotate with respect to said pivot maintaining an angle parallel to the horizontal.
  • the arrangement of wheels 15 will partially absorb said irregularity by restricting, at least partially, the inclination, which will force the wheel touching said irregularity 80, which rises a height A, while the axis segment 152 only experiences a gradual elevation until reaching the height A / 2 keeping the horizontal.
  • the longitudinal rotation block is carried out at least partially.
  • the arms 1 1 and 12 allow a partial longitudinal rotation.
  • the separation distance of the arms Lb1 is substantially the same as the separation distance between the wheels 13 and 14.
  • a stabilizer bar is attached to the lower rear part of the tower to compensate for the adjustment to the location of the center of mass when the hitch bar is extended in its greatest length, such that said stabilizer bar allows to the operator to stand on said bar compensating the weight so that the center of mass is maintained within the zone of stability.
  • the stabilizer bar is coupled by means of a hinge that, when disengaged, reaches ground level where the operator can step on it.
  • a stabilizer bar is attached to each mobile base arm 10, to temporarily extend the length of said arm, thereby temporarily modifying the crane configuration to support the change in the center of mass caused by degrees of freedom. Adjustable crane.
  • the mobile pivot 33 allows the detachable coupling of either a hitch module 30 or a harness system known in the art.
  • the materials used to manufacture either the mobile pedestal module 10, the tower and / or the hitch module are metals with polymeric accessories.
  • some aluminum alloy is used, such as 6061, 6063, 7075 aluminum, etc.
  • the bearing used for bearings and / or pivots is Nylamid.
  • each distal end of arm 1 1 and 12 includes a wheel arrangement with a differentiated axle, wherein said arrangement may or may not include a vertical pivot that allows the arrangement to rotate relative to said vertical pivot.

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Abstract

La présente invention concerne un système de chariot pour le déplacement de personnes, lequel système s'adapte à différents types de terrain, à différents types de véhicule et à différentes tailles d'utilisateur. Le système inclut une base comportant au moins une paire de roues avant et au moins une paire de roues arrière, un système 5 élévateur ayant au moins un niveau de sécurité et un module d'accrochage avec trois points de contact avec l'utilisateur réduisant ainsi l'interaction physique entre l'opérateur du chariot et l'utilisateur.
PCT/MX2018/050024 2018-04-06 2018-11-15 Base mobile de chariot pour le déplacement d'une personne WO2019194672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2018004255A MX2018004255A (es) 2018-04-06 2018-04-06 Sistemas y modulos de grua para traslado de personas.
MXMX/A/2018/004255 2018-04-06

Publications (1)

Publication Number Publication Date
WO2019194672A1 true WO2019194672A1 (fr) 2019-10-10

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ID=66592159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2018/050024 WO2019194672A1 (fr) 2018-04-06 2018-11-15 Base mobile de chariot pour le déplacement d'une personne

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Country Link
MX (1) MX2018004255A (fr)
WO (1) WO2019194672A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703523A (en) * 1985-11-06 1987-11-03 Impro Limited Invalid hoists
NL1011530C1 (nl) * 1999-03-11 2000-09-12 Schepping Matheus Robertus Van Tillift voor het transporteren van personen.
US6430761B1 (en) * 1999-01-25 2002-08-13 Take-Along Lifts Llc Compact portable patient lift

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703523A (en) * 1985-11-06 1987-11-03 Impro Limited Invalid hoists
US6430761B1 (en) * 1999-01-25 2002-08-13 Take-Along Lifts Llc Compact portable patient lift
NL1011530C1 (nl) * 1999-03-11 2000-09-12 Schepping Matheus Robertus Van Tillift voor het transporteren van personen.

Also Published As

Publication number Publication date
MX2018004255A (es) 2019-03-25

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