Forklift, suitable for handling loads in a nuclear medicine department

Abstract

The present invention relates to a forklift truck (1), particularly suitable for handling a load (2) in a nuclear medicine department, which forklift truck comprises a chassis (10) which is equipped with: - a base (11) provided with rolling means (110), - a tool (13), suitable for gripping said load, - maneuvering means (12), suitable for maneuvering said tool at height. Figure for abstract: 1

Description

Title of the invention: Forklift truck, suitable for handling loads in a nuclear medicine department Technical field of the invention

[0001] The present invention relates to the technical field of forklifts, particularly suitable for handling loads in a nuclear medicine department. State of the art

[0002] In the field of nuclear medicine, the handling of shielded containers constitutes a significant constraint for operators.

[0003] Several times a week, or even several times a day, operators are in fact required to carry these containers which can weigh around 20 kg.

[0004] Conventional, often manual, manipulations require considerable physical effort for operators (with risks of Musculoskeletal Disorders known as MSDs) and can present safety risks, particularly with regard to exposure to radiation.

[0005] There is therefore a need for a technical solution to optimally meet the needs of nuclear medicine professionals. Presentation of the invention

[0006] In order to overcome the aforementioned drawback of the state of the art, the present invention proposes a forklift truck, suitable for handling loads in a nuclear medicine department, for example shielded containers,

[0007] which forklift comprises a chassis which is equipped with:

[0008] - a base provided with rolling means,

[0009] - a tool, suitable for gripping said load,

[0010] - maneuvering means, adapted to maneuvering said tool at height (for example on a height stroke, between two end positions, ranging from 500 to 1,500 mm).

[0011] Other non-limiting and advantageous characteristics of the product according to the invention, taken individually or in all technically possible combinations, are the following:

[0012] - said tool is secured to said operating means by means of a connection removable, forming an interchangeable tool;

[0013] - said operating means comprise an arrow (length dimension going by example of 200 to 700 mm), also called “crosspiece”, comprising a front end receiving said tool, so as to move said tool away from an operator;

[0014] - said chassis is equipped with a handle, suitable for moving said trolley lift by an operator;

[0015] - it includes a control interface for controlling the maneuvering means, for example by pivoting around a horizontal rotation axis to move said tool in height;

[0016] - said chassis is equipped with a radiation protection screen, for example opaque, translucent or transparent, interposed between said tool (and where applicable the shielded container) and said operator (where applicable said handle); said radiation protection screen comprises a lower vertical panel (for example along an upright, also called a “mast” or “post”) extended by an upper inclined panel (for example overlying said upright) which is inclined towards said tool;

[0017] - the operating means comprise an amount on the height of which is placed said tool, for example via said boom (said boom is movable in translation over the height of said upright); preferably, said base comprises two front arms, extending from the upright and towards the tool, each equipped with a caster, and two rear arms, extending from the upright and away from the tool, said front arms being longer than said rear arms;

[0018] - the operating means comprise at least one motor member, for example a manual, hydraulic or electric motor unit associated with an electrical source (advantageously interchangeable);

[0019] - the tool is chosen for example from a model comprising a plate, for its connection with the front end of the boom, and two arms, extending on either side of the plate; preferably, the arms, generally L-shaped, are movable to form a gripping clamp defining a generally U-shaped location, open downwards.

[0020] - the forklift, and in particular the rolling means, can be equipped with motor means (for example in the form of a motorized wheel, possibly added) to facilitate its movement.

[0021] Of course, the various features, variants and embodiments of the invention may be combined with each other in various combinations to the extent that they are not incompatible or mutually exclusive. Detailed description of the invention

[0022] Furthermore, various other characteristics of the invention emerge from the appended description given with reference to the drawings which illustrate non-limiting forms of embodiment of the invention and where:

[0023] [Fig-1] is a general and perspective view of the forklift according to the invention;

[0024] [Fig.2] is a view of the rear face of the forklift according to the invention, operator side;

[0025] [Fig.3] is a view of the front face of the forklift truck according to the invention, load side (i.e. still tool side);

[0026] [Fig.4] is a side view of the forklift according to the invention;

[0027] [Fig.5] is a perspective view of the forklift truck according to the invention, equipped with a interchangeable tool for gripping by the strap;

[0028] [Fig.6] is a perspective view of the forklift according to the invention, during loading under the drawer worktop;

[0029] [Fig.7] is a perspective view of the forklift according to the invention, equipped with an interchangeable tool for gripping by the handle in a packaging box (flycase);

[0030] [Fig.8] is a perspective view of the forklift truck according to the invention, equipped with a platform;

[0031] [Fig.9] is a perspective view of the forklift according to the invention, illustrating its tool storage magazine;

[0032] [Fig. 10] is a perspective view of the forklift truck according to the invention, equipped with an interchangeable tool for gripping a transport container by the handle;

[0033] [Fig. 11] is a schematic view of a plier-shaped tool, in its open configuration;

[0034] [Fig. 12] is a schematic view of the plier-shaped tool, in its closed configuration;

[0035] [Fig. 13] is a schematic view of the plier-shaped tool, in its closed configuration, illustrated along a cross-sectional plane.

[0036] It should be noted that, in these figures, the structural and / or functional elements common to the different variants may have the same references. Forklift

[0037] As shown in the figures, the present invention relates to a forklift 1, preferably motorized and advantageously ergonomic.

[0038] Generally speaking, the forklift 1 according to the invention, suitable for handling loads 2 in a nuclear medicine department, for example shielded containers, comprises a chassis 10 which is equipped with:

[0039] - a base 11 provided with rolling means 110,

[0040] - a tool 13, adapted to grip a load 2, and

[0041] - maneuvering means 12, adapted to the maneuvering at height of this tool 13.

[0042] The forklift 1 according to the invention is advantageously designed to assist an operator (or user) when handling heavy loads 2, in particular during essential uses in a nuclear medicine department.

[0043] For example, such essential uses include unpacking, loading, transporting and placing loads 2, such as shielded containers, in equipment 3 for preparing radiopharmaceutical drugs.

[0044] For this, the proposed forklift 1 advantageously has a compact shape, and is easy to use for the operator.

[0045] In the context of the invention, charge 2 consists for example of:

[0046] - an armored container, or

[0047] - a packaging in which this armoured container is returned / transported, for example a box.

[0048] “Shielded containers” are mainly understood to mean technetium 99m, gallium 68 or other generators.

[0049] More generally, and in a non-limiting manner, the term “armored containers” also includes: - generators for example Tekcis, UTK - Ultra-TechneKow, Monrol, and - shielded pots for FDG multi-dose vials, for example AAA, Cyclopharma, Posisafe (Registered Trademark).

[0050] Preferably, these shielded containers, used in nuclear medicine departments, are used to transport radiopharmaceutical drugs that emit radiation.

[0051] Such shielded containers, due to the presence of shielding, for example, metal shielding, have weights of around several tens of kilograms, typically close to 20 kilograms. Manual handling by the operator exposes the latter to risks of musculoskeletal disorders (MSDs).

[0052] In particular, the proposed forklift 1 assists the operator in particular during handling steps such as loading and / or unloading these armored containers during their unpacking and / or their installation.

[0053] In the context of the invention, by “preparation equipment” is meant for example an Easypharma Compact shielded enclosure (registered trademark) or a Posijet injector-preparer (registered trademark).

[0054] Thus, thanks to the assistance of such a forklift 1, the physical efforts made by the operators are minimized. Furthermore, the installation of the shielded containers in the equipment for preparing radiopharmaceutical drugs and / or nuclear medicine enclosures is facilitated, protecting the operator from MSDs.

[0055] In addition, the forklift 1 according to the invention also offers optimal radiation protection to operators throughout the maneuvers. Indeed, despite the presence of shielding, the radioactive nature of the substances contained in the shielded containers exposes operators to risks linked to radiation in the long term.

[0056] During its essential uses within the nuclear medicine department, the forklift 1 is maneuvered (i.e. still moved by the operator) on a surface corresponding to the floor of the nuclear medicine department; this surface defines a horizontal plane. The operator, i.e. a nuclear medicine professional, stands along a vertical axis V, defined perpendicular to the horizontal plane.

[0057] In order to facilitate a good understanding of the following description, the orientation of the forklift 1 can be defined relative to this vertical axis V:

[0058] - a bottom of the forklift 1 is defined along the vertical axis V, near the ground,

[0059] - a top of the forklift 1 is defined at a distance from the ground, always along the axis vertical V,

[0060] - a front of the forklift 1 is defined perpendicular to the vertical axis V, in direction of a direction of maneuver of the operator when he / she advances, on the side of the tool 13,

[0061] - a rear of the forklift 1 is defined opposite the front, perpendicular to the vertical axis V.

[0062] This forklift 1 also advantageously comprises two axes:

[0063] - a longitudinal axis, in the front / rear direction, and

[0064] - a transverse axis, perpendicular to said front / rear direction. Chassis

[0065] As illustrated in [Fig.l], the chassis 10 forms a rigid frame on which are fixed, by permanent connections or removable connections, equipment, listed in the remainder of the description. Such a chassis 10 assists the operator in the various maneuvers carried out.

[0066] Advantageously, the frame 10 is made of stainless steel, allowing for better resistance over time. Indeed, stainless steel is a material that is not very susceptible to corrosion, making maintenance simple and quick.

[0067] In particular, without being limiting, it is a chassis 10 made of 304L stainless steel, known as UNS S30403 according to the Unified Numbering System.

[0068] Alternatively, the chassis 10 may be made of any metal alloy, plastic material or composite material, having resistance over time and ease of maintenance.

[0069] The chassis 10 comprises for example:

[0070] - a first element 101, close to the ground, in the form of a rectangular paving stone, extending along the transverse axis of the carriage, and standing along the vertical axis V, and

[0071] - a second element 102, so as to extend along the vertical axis V.

[0072] The second element 102 is erected from the first element 101, and extends along the vertical axis V from a middle of the first element 101.

[0073] This second element 102 constitutes a mast, on which part of the equipment of the chassis 10 is fixed.

[0074] For example, the first element 101 of the chassis 10 has:

[0075] - a height ranging from 100 millimeters (mm) to 1000 mm,

[0076] - a width, measured along the transverse axis, ranging from 300 mm to 1000 mm.

[0077] The second element 102 of the chassis 10 stands at a height ranging from 1000 mm to 1500 mm, preferably from 1100 to 1300 mm.

[0078] The chassis 10 has a front face and a rear face, the rear face being oriented towards the operator, while the front face stands opposite the front face. Base

[0079] The base 11 is advantageously configured to stabilize the forklift 1 during its maneuvering by the operator.

[0080] This base 11 is located on the bottom of the chassis 10, on the ground side.

[0081] This base 11 is provided with rolling means 110, in order to allow the maneuvering of the forklift 1 by the operator, when transporting a load 2.

[0082] In this case, the base 11 advantageously comprises:

[0083] - two front arms 112 extending from the front face of the chassis 10, in the direction of the front of forklift 1, and

[0084] - two rear arms 114, extending from the rear face of the chassis 10, in the direction of the back of the forklift 1.

[0085] The front arms 112 and the rear arms 114 are advantageously spaced apart along the width of the chassis 10 (advantageously defining the width dimension of the forklift 1).

[0086] Preferably, the front arms 112 and the rear arms 114 are parallel to the longitudinal axis of the carriage.

[0087] In particular, the front arms 112 are advantageously spaced apart from each other, to define, with the chassis 10, a U-shaped structure opening towards the front.

[0088] The spacing between these front arms 112 (measured along the transverse axis) is advantageously chosen to facilitate the essential uses of the forklift 1, in particular when loading and / or unloading the loads 2 (which are positioned within the U-shaped structure, between these front arms 112).

[0089] Furthermore, the rear arms 114 are advantageously spaced apart from each other, to define, with the chassis 10, a U-shaped structure opening towards the rear.

[0090] The spacing between these rear arms 114 (measured along the transverse axis) is advantageously chosen to facilitate the positioning of the operator when handling the trolley.

[0091] For example:

[0092] - the spacing between the front arms 112 is 400 mm to 700 mm,

[0093] - the spacing between the rear arms 114 is 400 to 700 mm.

[0094] Preferably, in order to stabilize the forklift 1, and prevent it from tipping over, the front arms 112 are longer than the rear arms 114.

[0095] For example, the front arms 112 have a length ranging from 200 to 1000 mm. The rear arms 114 have a length ranging from 50 to 200 mm.

[0096] The rolling means 110 are advantageously carried by these front arms 112 and these rear arms 114.

[0097] For example, the front arms 112 have a height (along the vertical axis V) which is less than 200 mm to fit under the preparation equipment.

[0098] A rolling means 110 is fixed to a free end of each of the arms 112, 114, at a distance from the chassis 10. The forklift 1 thus comprises four rolling means 110.

[0099] By “rolling means 110”, it is advantageously understood to mean casters, for example swivel casters (having a degree of freedom in rotation parallel to the vertical axis V).

[0100] In order to immobilize the forklift 1 during loading and / or unloading, two rollers equipped with a braking means are provided.

[0101] Here, the rollers 110 fixed on the two rear arms 114 are advantageously equipped with a braking means, advantageously of the pedal type.

[0102] Generally speaking, the forklift 1, and in particular the rolling means 110, can be equipped with motor means (not shown), to facilitate its movement.

[0103] The motor means consist for example of an electric motor member which is associated with a wheel to form a motorized wheel, possibly an attached motorized wheel.

[0104] The motor means can equip at least one of the casters 110; they can also be in the form of at least one additional motorized wheel which is attached to the base 11. Means of maneuver

[0105] The maneuvering means 12 are advantageously adapted to the vertical displacement of the tool 13, along the vertical axis V.

[0106] According to a particular embodiment, represented for example in Figures 1, 3 and 4, the operating means 12 advantageously comprise an upright 120 (corresponding to the second element 102 of the chassis 10), a slide 122 and an arrow 124.

[0107] The operating means equip the chassis 10, by means of the upright 120, also called mast or post.

[0108] The upright 120 extends along the vertical axis V. It has a lower end located close to the ground and has, for example, a height equal to 1,100 to 1,500 mm.

[0109] The upright 120 here comprises two grooves on the front face, within which the slider 122 is inserted, so as to be able to translate along these two grooves.

[0110] The grooves thus guide the trajectory of the slide 122 (visible in particular in [Fig.l]), in a vertical direction (parallel to the vertical axis V), defining a degree of freedom in translation.

[0111] The slide 122, movable in translation over the height of the upright 120 forming a slide, is intended to receive a rear end of the boom 124.

[0112] This slider 122 is mounted here on the upright 120, more particularly on a front face of the upright 120.

[0113] Thanks to this slide 122, the boom 124 is movable in translation over the height of the upright 120; during this translation, the boom 124 moves parallel to itself. In other words, the boom 124 (and the associated tool 13) is movable in height relative to the ground.

[0114] Here, the maneuvering means 12 are such that the height travel of the boom 124 between two end-of-travel positions (and therefore the height travel of the tool 13 connected to the end of the boom 124), is from 500 mm to 1500 mm.

[0115] Generally, during the steps of maneuvering the forklift 1 by the operator, the tool 13 is translated vertically along a vertical stroke delimited by two end-of-stroke positions.

[0116] - a lower end position, close to the ground, and

[0117] - an upper end position, at a distance from the ground.

[0118] The lower end-of-travel position has, for example, a height dimension (relative to the ground) ranging from 0 to 200 mm. And the upper end-of-travel position has, for example, a height dimension (relative to the ground) ranging from 800 to 1500 mm.

[0119] The tool 13 can be maneuvered into various intermediate positions, between these two end-of-travel positions.

[0120] Preferably, the operating means 12 comprise at least one motor member (not visible), which is advantageously integrated into the chassis 10, for example at the level of the lower end of the upright 120.

[0121] This motor unit may consist, for example, of a manual (or mechanical) motor unit, a hydraulic motor unit or an electric motor unit.

[0122] Preferably, transmission means are installed in the upright 120, between this driving member and the slider 122 (for example a chain or a transmission belt, associated with a driving pulley).

[0123] In the case of an electric motor unit, the latter is advantageously associated with an electrical source 126, for the height maneuvering of the tool 13 ([Fig.l] in particular).

[0124] Ideally, the electrical source 126, for example a battery, is removable, making the electrical source interchangeable. The operator thus benefits from continuous flexibility of use, thanks to the interchangeable electrical sources.

[0125] Furthermore, the electrical source is advantageously chosen to be rechargeable.

[0126] The electric motor unit (with its electrical source) advantageously has a power suitable for ensuring several lifts before its discharge. Ideally, the electrical source equipping the forklift 1 allows 10 to 300 lifts per charge cycle.

[0127] In order to simplify the use of the forklift 1 for the operator, the forklift 1 preferably comprises a battery charge indicator comprising, for example, a light display corresponding to a charge level of the electrical source.

[0128] The motor member assists the lifting of the loads 2. The translation of the slide 122 on the upright 120 (in order to raise and lower the boom 124), as well as the maneuvering of the tool 13 carrying the armored container, is done in an assisted manner, without requiring physical effort (or at least with reduced physical effort) on the part of the operator.

[0129] Ideally, thanks to the motor member actuating the movement of the tool 13 on the upright 120, the forklift 1 has a lifting capacity of 20 to 50 kg.

[0130] The motor unit also acts as an anti-crushing system on the forklift 1.

[0131] In particular, the motor member may be equipped with sensors adapted to interrupt the operation of the tool 13 in the event of the presence of an obstacle in its path, for example a high end-of-travel stop and a torque limiter.

[0132] Generally speaking, the arrow 124, also called a “crossbar” or “spar”, is useful for moving the load 2 away from the operator during the maneuver. Indeed, moving the shielded container away from the operator reduces the risk of exposure to radiation.

[0133] This arrow 124 can also be of interest for facilitating the insertion and / or extraction of this load 2 in an enclosure.

[0134] The arrow 124 is cantilevered relative to the upright 120.

[0135] It has two ends:

[0136] - a free front end, carrying the tool 13 (at a distance from the chassis 10), and

[0137] - a rear end, cooperating with the slider 122 and the upright 120, in order to form a gallows.

[0138] In other words, the arrow 124 advantageously extends horizontally, with its front end receiving the tool 13, oriented so as to move the tool 13 away from the operator.

[0139] For example, the arrow 124 has a length ranging from 200 mm to 700 mm. Tools

[0140] Generally, the tool 13 is secured to the operating means 12, in this case to the front end of the boom 124, by means of a removable connection.

[0141] The tool 13 then consists of an interchangeable tool, advantageously adapted to the load 2 to be maneuvered.

[0142] The tool 13 being interchangeable, examples of models of tools 13 are described in the remainder of the description. Indeed, the diversity of loads implies a diversity in the tools 13. The forklift 1 can advantageously receive a plurality of interchangeable tools 13, available to the operator.

[0143] According to one embodiment, the front end of the boom 124 comprises a fixing plate. And the tool 13 is fixed to the front end of the boom 124 using a quick fastener (or quick fastener).

[0144] A first model 131 for the interchangeable tool 13, placed at the front end of the boom 124, is shown in Figures 1 to 5.

[0145] The first model 131 has a plate 1310, vertical, secured to the front end of the boom 124, in a removable manner.

[0146] A two-pronged fork shape 1312 extends from the plate 1310, toward the front of the forklift 1, horizontally.

[0147] This two-pronged fork 1312 is adapted to engage with the armoured container, by means of a strap 20 (also called a handle - [Fig.l]), for example during the stages of unpacking, transport and placement within the preparation equipment 3.

[0148] In particular, such a two-pronged fork 1312 is advantageously suited to handling UTK - Ultra-TechneKow armoured containers.

[0149] The distance between the two teeth 1312 is chosen so as to facilitate gripping at the strap 20, while stabilizing any possible rolling movement, for example during transport of the armored container by the forklift 1.

[0150] For example, the two teeth 1312 of the fork have a distance of 100 to 120 mm from each other, while a length of one tooth 1312 is 120 to 130 mm.

[0151] Here, the two teeth 1312 each have a notch 1314, so that the strap 20 is preferably housed across the two notches 1314.

[0152] Preferably, the tool 13 may comprise a strap 1316, made of flexible material, which is suitable for assembly with a transport packaging 4 (illustrated in [Fig.5]).

[0153] In particular, the ends of this strap 1316 are adapted to be secured to the handles of such transport packaging 4.

[0154] A second model 132 for the tool 13 is shown in [Fig.7].

[0155] This second model 132 has a plate 1320, secured to the front end of arrow 124.

[0156] The plate 1320 has, at a lower end, two hooks 1322 which are curved upwards.

[0157] The distance between the two hooks is for example 10 to 50 mm.

[0158] Such a model 132 is suitable for the maneuvering steps of shielded containers such as FDG pots. Such FDG pots have a rigid handle, where a horizontally oriented bar is connected to a body of the pot by two vertically oriented rods.

[0159] The second model 132 is configured to grip the FDG pot by its rigid T-shaped handle, the rod being inserted into a space between the two hooks 1322.

[0160] A third model 133 is illustrated in [Fig.8].

[0161] This third model 133 of tool 13 is similar to a rectangular plate 1332 of which a support surface is oriented horizontally.

[0162] The plate 1332 has, at its front end, a plate 1330 which interfaces with the front end of the boom 124. The connection between the plate 1330 and the end of the boom 124, as for the previous examples 1312, is obtained by a removable connection.

[0163] The plate 1332 rests on the arrow 124 described previously; the plate is thus above the arrow 124. The weight of the load 2 is thus distributed over the arrow 124.

[0164] A fourth model 134 of tool 13 is illustrated in Figures 9 and 11 to 13, dissociated from the arrow 124.

[0165] This model 134 includes:

[0166] - a plate 1340, for its attachment to the front end of the boom 124, and

[0167] - two arms 1342, extending on either side of the plate 1340.

[0168] These arms 1342, generally L-shaped, are movable to form a gripping clamp, suitable for example for a Tekcis generator.

[0169] Each arm 1342 advantageously comprises a horizontal section extended downwards by a vertical section.

[0170] The arms 1342 thus define a location in the general shape of a U, open downwards.

[0171] Preferably, the arms 1342 are synchronized in rotation (with opposite directions of rotation), by means of a gear.

[0172] For example, as illustrated in [Fig. 13], the arms 1342 have two ends:

[0173] - an upstream end 1342a, assembled in rotation with a base 1343 and comprising a toothing cooperating with a complementary toothing of the other arm 1342, and

[0174] - a downstream end 1342b, free, intended to cooperate with the generator.

[0175] The downstream end 1342b advantageously comprises a projecting lug, oriented towards the downstream end 1342b of the other arm 1342, which has an upper receiving face having a downward slope from the inside to the outside.

[0176] The arms 1342 are movable between two configurations:

[0177] - an open configuration ([Fig. 11]), for the support and release of the generator, and

[0178] - a closed configuration (figures 12 and 13), for gripping the generator.

[0179] In this case, the upstream ends 1342a are spaced apart in the open configuration and are brought together in the closed configuration.

[0180] Preferably, the tool 134 comprises locking means 1344, for locking the tool 134 in the closed configuration.

[0181] These locking means 1344 consist for example of a leg of which:

[0182] - a first end 1344a is pivotally mounted on an arm 1342, and

[0183] - a second end 1344b comprises a reservation intended to cooperate, in the closed configuration, with a complementary male organ carried by base 1343.

[0184] The locking means 1344 thus advantageously comprise:

[0185] - an inactive position, when the arms 1342 are in the open configuration and the leg 1344 is dissociated from base 1343, and

[0186] - an active position, when the arms 1342 are in the closed configuration and the leg 1344 is associated with base 1343.

[0187] Preferably, the tool 134 comprises elastic return means 1345 (for example a traction spring member) to tend to return the arms 1342 from the closed configuration to the open configuration.

[0188] The elastic return means 1345 are for example installed between the base 1343 and the leg 1344.

[0189] More preferably, the tool 134 comprises unlocking means 1347, intended to cooperate with the locking means 1344 so as to maneuver these latter in unlocked configuration and to allow the arms to return to open configuration.

[0190] The unlocking means 1347 consist for example of a lever, or a release arm, pivotally mounted on the base 1343.

[0191] This lever 1347 is adapted to be maneuvered by an operator, to exert here a thrust on the second end 1344b of the leg 1344 which moves the locking means 1344 from the locked configuration to the unlocked configuration. Storage space

[0192] In order to conveniently store the interchangeable tools 13, examples of which are presented previously, the forklift 1 comprises a storage space for the tools 13 ([Fig.9] in particular).

[0193] This storage space is integrated into the chassis 10, for example at the level of the first element 101 of the chassis 10, at the level of the front face.

[0194] For this, this storage space advantageously comprises several locations which are each adapted to receive at least one tool 13. Handle

[0195] For the operator to operate the forklift 1, the chassis 10 advantageously comprises a handle 14, fixed here to the second element 102 of the chassis 10 (on the side of its upper end and on the rear side).

[0196] This handle 14, shown in [Fig.2] in particular, has two divergent branches around which the operator grips his hands.

[0197] This handle 14 is adapted to the movement of the forklift 1:

[0198] - by pushing, in order to move the carriage forward, or conversely,

[0199] - by pulling, in order to move the trolley backward.

[0200] In the embodiment presented and in a non-limiting manner, the movement of the forklift 1 is not motorized, the operator exerting sufficient physical force to set the forklift in motion. Control interface

[0201] Preferably, a control interface 17 is provided for controlling the maneuvering means 12.

[0202] The control of the pilot interface 17 starts and stops the translation in height of the carriage by the motor member, in the desired direction.

[0203] Preferably, the control interface 17 can be actuated by pivoting, around a vertical rotation axis, in two directions:

[0204] - in a first direction, to translate the tool upwards, and

[0205] - in a second direction, to translate the tool downwards.

[0206] Alternatively, the control means may also comprise actuable buttons, respectively associated with the translation directions.

[0207] Generally speaking, the control interface 17 advantageously controls the maneuvering of the tool with acceleration ramps (in particular for rapid maneuvering between the two end-of-travel positions). Protective screen

[0208] In order to protect the operator from prolonged exposure to ionizing radiation, the chassis 10 also comprises a radiation protection screen 15 (in particular [Fig.l]).

[0209] This radiation protection screen 15, for example opaque or translucent, is intended to be interposed between the tool 13 (and its load) and the operator (where appropriate the handle 14).

[0210] The radiation protection screen 15 is for example dihedral. It comprises a lower vertical panel 150 (for example along the upright 120) extended by an upper inclined panel 152 (for example overlying the upright 120) which is inclined towards the tool 13 (towards the front).

[0211] The lower vertical panel 150 extends in height along the vertical axis V, and along the transverse axis, so as to be interposed between the load 2 and the operator.

[0212] The upper inclined panel 152 extends along the transverse axis, and is for example inclined at an angle ranging from 10 to 45°, relative to the vertical axis V.

[0213] The lower vertical panel 150 is secured to the rear face of the second element 102 of the frame 10, i.e. along the upright 120.

[0214] In addition, a lower edge of the lower vertical panel 150 is embedded within a slot provided on an upper vertex of the first element 101 of the frame 10.

[0215] This portion of the protective screen ensures good visibility for the operation, particularly during the transport of shielded containers, and while continuing to provide a radiation blocking function.

[0216] The choice of a semi-transparent protective screen facilitates the operator's maneuvering, giving him better awareness of his surroundings.

[0217] Such a semi-transparent protective screen is for example made of an organic material, such as PMMA loaded with a radioprotective material.

[0218] Such a radiation protection screen 15, having a thickness of 10 to 15 mm, has protection against ionizing radiation equivalent to that of 0.5 millimeters of lead.

[0219] Generally, various portions of the chassis 10 may include lead, either in the form of a coating or in the form of a part made of lead.

[0220] In particular, the first element 101 and / or the second element 102 may comprise lead in order to ensure continuity of radiation protection. Implementation

[0221] Figures 5 and 6 illustrate different maneuvering steps using the forklift 1 as described previously.

[0222] In [Fig.5], a step of loading a load 2, for example a shielded container by the forklift 1, is illustrated.

[0223] During this loading step, the operator maneuvers the forklift 1 by rolling it on the rolling means 110, in order to position the load 2 (and in this case a packaging box 4) between the two front arms 112 of the base 11. The spacing of the front arms 112 of the base 11 is adapted to standard dimensions of packaging box 4.

[0224] Note that the packaging box 4 may have been handled upstream of the loading step, using the same forklift 1 equipped with an appropriate tool model 13 (for example the straps 1316).

[0225] In this case, the operator performs this maneuver by exerting forces on the handle 14.

[0226] The height of the tool 13 has been lowered by the operator, preferably via the control interface 17. Here in particular, the operator pivots the control interface 17 in the first direction of rotation in order to lower the slide in a motorized manner.

[0227] Using the tool 13 (for example the first model 131 of the tool 13), the operator picks up the load 2 (for example via its strap 20), for example in its transport packaging.

[0228] In the case of the fourth model 134 of tool 13, in the form of pliers, the operator advantageously exerts a thrust on at least one of the arms 1342, so as to maneuver them from the open configuration to the closed configuration.

[0229] The downstream ends 1342b of the arms 1342 then engage with the load, for example Tekcis generator.

[0230] And the locking means 1344 here automatically move from the inactive position to the active position (the second end 1344b cooperates by fitting with the base 1343).

[0231] The closed configuration is advantageously maintained by a combination of elements, in particular:

[0232] - the locking means 1344 in the active position, and

[0233] - the shape of the downstream ends 1342b, sloping, cooperating with shapes complementary to the load.

[0234] Once the load 2 cooperates with the tool 13, the operator maneuvers this tool 13 in lifting, for example in order to lift the load 2 relative to the ground or to a package. To do this, the operator activates the motorized movement of the tool 13 upwards (if necessary by maneuvering the slide 122 carrying the boom 124), via the control interface 17. Here, for example, the operator pivots the control interface 17 in the other direction of rotation, in order to raise the slide 122.

[0235] The operator then proceeds to the step of transporting load 2 within the nuclear medicine department. For example, the operator brings load 2 from its loading location to preparation equipment 3.

[0236] During this step of transporting the shielded container, the operator in the maneuvering position is protected here from the risks of radiation by the radiation protection screen 15. The length of the boom 124 further distances the load 2 from the operator, which further reduces the risks of exposure.

[0237] Furthermore, the compact dimensions of the forklift 1 make it easier to move the forklift 1 within the department. Similarly, the presence of casters, ideally swivel casters, two of which are equipped with braking means, guarantees the smooth movement of the forklift 1.

[0238] [Fig.6] illustrates the step of discharging the load 2, i.e. the step of placing it within the preparation equipment 3.

[0239] To do this, the operator maneuvers the forklift 1 to the loading position, using in particular the braking means and the handle 14.

[0240] Here, the front arms 112 of the base 11 can be inserted under the preparation equipment 3. In other words, the docking of the forklift 1 on the equipment is facilitated by its ergonomic shape.

[0241] During this positioning, the operator also places the load 2 on a discharge zone 30 of the preparation equipment 3. Here, the discharge zone 30 comprises a tray, on which the load 2 is placed.

[0242] For this purpose, the operator adjusts the height of the tool 13, advantageously via the maneuvering means 12 and the control interface 17.

[0243] Here again, during this step, the operator is protected here from the risks of radiation by the radiation protection screen 15 and by the length of the arrow 124.

[0244] In the case of the fourth model 134 of tool 13, in the form of pliers, the operator advantageously exerts a push on the unlocking means 1347.

[0245] This action ensures the maneuvering of the locking means 1344 in the inactive position, so as to generate the maneuvering of the arms 1342 from the closed configuration to the open configuration under the action of the elastic return means 1345.

[0246] Once the load 2 has been delivered, the operator can then carry out further handling operations using the same model of tool 13, or using another interchangeable tool 13 (the latter being easily accessible within the tool storage space 13).

[0247] The forklift 1 thus described is versatile, being compatible with a wide range of interchangeable quick-attach tools 13, in order to adapt to the different needs and uses of the services.

[0248] Of course, various other modifications may be made to the invention within the scope of the appended claims.

Claims

Claims

1. Forklift truck (1), suitable for handling a load (2) in a nuclear medicine department, for example shielded containers, which forklift truck (1) comprises a chassis (10) which is equipped with: - a base (11) provided with rolling means (110), - a tool (13), suitable for gripping said load (2), - maneuvering means (12), suitable for maneuvering said tool (13) at height.

2. Forklift (1) according to claim 1, characterized in that said tool (13) is secured to said operating means (12) by means of a removable connection, forming an interchangeable tool (13).

3. Forklift (1) according to any one of claims 1 or 2, characterized in that said maneuvering means (12) comprise an arrow (124), advantageously horizontal, comprising a front end receiving said tool (13), so as to move said tool (13) away from an operator.

4. Forklift (1) according to any one of claims 1 to 3, characterized in that said chassis (10) is equipped with a handle (14), suitable for moving said forklift (1) by an operator.

5. Forklift (1) according to claim 4, characterized in that it comprises a control interface (17) for controlling the maneuvering means (12).

6. Forklift (1) according to any one of claims 1 to 5, characterized in that said chassis (10) is equipped with a radiation protection screen (15) intended to be interposed between said tool (13) and said operator.

7. Forklift (1) according to claim 6, characterized in that said radiation protection screen (15) comprises a lower vertical panel (150) extended by an upper inclined panel (152) which is inclined towards said tool (13).

8. Forklift (1) according to any one of claims 1 to 7, characterized in that the maneuvering means (12) comprise an upright (120) on the height of which said tool (13) is placed, for example via a slide (122) equipped with said boom (124).

9. Forklift truck (1) according to claim 8, characterized in that said base (11) comprises: - two front arms (112), extending from the upright (120) and towards the tool (13), each equipped with a castor, and - two rear arms (114), extending from the upright (120) and opposite the tool (13), said front arms (112) being longer than said rear arms (114).

10. Forklift truck (1) according to any one of claims 1 to 9, characterized in that the maneuvering means (12) comprise at least one motor member, for example an electric motor member associated with an electrical source.

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