Handling machine with an energy storage device positioned under the driver's cab

Abstract

The invention relates to a handling machine (1) comprising: - a chassis (2) having a median longitudinal axis (X); - a driver's cab (11) attached to the chassis (2) and positioned on a first side of the chassis (2) with respect to the median longitudinal axis (X) of the chassis (2); - a support device (20) configured to support an energy storage device (16, 19) and attach it to the chassis (2) or to the driver's cab (11); wherein the support device (20) has deformable connections (22, 26, 33, 34) and a frame (21) inside which the energy storage device (16, 19) is attached.

Description

Material handling machine with an energy storage device positioned under the driver's cab

[0001] The invention relates to the field of handling machines comprising a chassis, a lifting arm and a driver's cab which is fixed to the chassis and positioned on a first lateral side of the chassis. Technological background

[0002] Document US6688481 discloses a handling machine which comprises a chassis, a telescopic arm which is mounted articulated on the chassis along a transverse axis and is movable in a median longitudinal plane of the handling machine and a driver's cab which is arranged on a lateral side of the handling machine relative to the lifting arm. The handling machine comprises an electric motor which is configured to provide its propulsion. The handling machine also comprises a battery or a fuel cell system which is connected to the electric motor in order to supply it with electrical energy. The battery or the fuel cell system is arranged on a rear part of the vehicle chassis in order to form a counterweight.

[0003] Such a handling machine is not fully satisfactory, in particular in that the aforementioned arrangement of the battery or the fuel cell system does not allow them to be effectively protected against impacts, whereas the battery or the hydrogen tank of the fuel cell system are particularly sensitive to them and are particularly likely to lead to fires or explosions.

[0004] One idea behind the invention is to provide a handling machine that offers enhanced safety.

[0005] According to a first subject, the invention relates to a handling machine comprising:- a chassis having a median longitudinal axis;- a lifting arm pivotally mounted on the chassis;- a driver's cab which is fixed to the chassis and is positioned on a first side of the chassis relative to the median longitudinal axis of the chassis;- an energy storage device which is housed in a compartment positioned under the driver's cab;- a support device which is configured to support the energy storage device;the support device comprising deformable links and a frame inside which the energy storage device is fixed, the deformable links being configured to fix the frame to the chassis or to the driver's cab and having a stiffness for a first force applied to the support device, and in particular to the frame, with a vertical component which is less than a stiffness of the frame for said first force so that the deformable links deform more than the frame when said first force is exerted.;

[0006] Thus, the arrangement of the energy storage device in a compartment under the driver's cab offers, in particular, excellent protection against falling objects. In addition, thanks to the support device which favors the deformations of the deformable connections over the deformations of the frame which is more rigid, the risks of destruction and / or explosion of the energy storage device which is fixed in the frame are reduced, in particular when the handling machine overturns.

[0007] According to one embodiment, the deformable connections are configured to fix the frame to the chassis and the support device comprises a stop element which is configured to serve as a support for the driver's cab when said driver's cab deforms under the effect of a deformation force which is exerted on said driver's cab with a horizontal component directed transversely outwards. Such a stop element makes it possible to control the potential point of contact between the driver's cab and the support device, in the event of a rollover.

[0008] According to one embodiment, the stop element projects upwardly from the frame towards the driver's cab and is positioned on an upper surface of the frame, located along an edge of the frame which is transversely opposite the chassis. This makes it possible to further promote the deformation of the deformable links relative to that of the frame, by increasing the lever arm.

[0009] According to one embodiment, the deformable connections have a working section corresponding to the application of the first force on the frame which has an area smaller than that of a working section of the frame.

[0010] According to one embodiment, the deformable links have a working section with a quadratic moment along an axis parallel to the median longitudinal axis which is less than a quadratic moment of the working section of the frame along said axis parallel to the median longitudinal axis.

[0011] According to an alternative or complementary embodiment, the frame is made of a first metallic material having a first modulus of elasticity and the deformable connections comprise a second material having a second modulus of elasticity lower than the first modulus of elasticity.

[0012] According to one embodiment, the second material is chosen from elastomers, such as rubber.

[0013] According to one embodiment, the deformable connections have a stiffness corresponding to the application of the first force on the frame which is greater than a stiffness of the deformable connections corresponding to the application of a force on the frame horizontally and parallel to the median longitudinal axis. This allows the deformable connections to deform less when the handling machine is subjected to frontal impacts than when it turns over and the driver's cab deforms accordingly until it comes to bear against the support device.

[0014] To do this, according to one embodiment, the deformable connections and more particularly their working section have a quadratic moment determined with respect to a horizontal axis parallel to the median longitudinal axis which is greater than a quadratic moment of the working sections of said deformable connections determined with respect to a vertical axis.

[0015] According to one embodiment, the energy storage device is chosen from a pressurized gas storage tank and an electrical energy storage unit.

[0016] According to one embodiment, the energy storage device is a pressurized gas storage tank which is suitable for storing hydrogen at a maximum pressure of between 300 and 700 bars.

[0017] According to one embodiment, the deformable connections fix the frame to the chassis, said deformable connections having a bending stiffness corresponding to the application of the first force which is less than a bending stiffness of the frame for said first force.

[0018] According to one embodiment, the chassis comprises a first side member and a second side member which extend parallel to the median longitudinal axis on either side of said median longitudinal axis, the first side member being arranged on the first side of the chassis relative to the median longitudinal axis, the driver's cab and the deformable connections being fixed to said first side member.

[0019] According to one embodiment, the support device comprises at least two deformable links which are distributed longitudinally along the chassis.

[0020] According to one embodiment, the deformable connections fix the frame to the driver's cab, and in particular to its floor, said deformable connections having a compression stiffness corresponding to the application of the first force which is less than a compression stiffness of the frame for said first force. Brief description of the figures

[0021] The invention will be better understood, and other objects, details, characteristics and advantages thereof will appear more clearly during the following description of several particular embodiments of the invention, given solely for illustrative and non-limiting purposes, with reference to the accompanying drawings.

[0022] This is a schematic side view of a handling machine equipped with a compartment positioned under the driver's cab in which an energy storage device is housed.

[0023] This is a schematic top view of the handling machine.

[0024] This is a partial rear view of a handling machine illustrating in particular the front wall of the driver's cab, one of the chassis side members, the energy storage device and the support device which is configured to support the energy storage device according to a first embodiment.

[0025] This is a view similar to that of illustrating deformations of the chassis and the driver's cab, which may occur if the handling machine overturns.

[0026] This is a view similar to that of figures 3 and 4 and illustrating the deformations of the support device likely to occur in the event of deformations of the chassis and the driver's cab, as shown diagrammatically in the.

[0027] This is a schematic view of a support device and its method of attachment to the handling machine according to a first embodiment.

[0028] This is a schematic view of a support device and its method of attachment to the handling machine according to a variant of the first embodiment of the.

[0029] This is a schematic view of a support device and its method of attachment to the handling machine according to a second embodiment.

[0030] This is a schematic view of the frame of the support device according to one embodiment.

[0031] This is a schematic view illustrating the geometry of a deformable connection according to one embodiment.

[0032] This is a diagram illustrating a safety device, in particular configured to control a shutoff valve associated with a hydrogen tank according to one embodiment.

[0033] By convention, the "longitudinal" direction of the handling machine corresponds to its front-rear orientation. Furthermore, the terms "rear" and "front", respectively designated AV and AR in Figures 1 and 2, are used to define the relative position of one element with respect to another in the longitudinal direction. The median longitudinal axis, designated X in the figures, is an axis oriented in the longitudinal direction and passing through the middle of the front and rear axles of the handling machine. The "transverse" direction is oriented perpendicular to the longitudinal direction.

[0034] With reference to Figures 1 and 2, a handling machine 1 is described according to a first embodiment. The handling machine 1 comprises a chassis 2 and a load handling device, here a lifting arm 3, which is movably mounted on the chassis 2.

[0035] The chassis 2 is mobile. To achieve this, the handling machine 1 has two axles, a front axle 4 and a rear axle 5, which are each mounted on the chassis 2 along a transverse axis and are each equipped with two wheels, one on the left and the other on the right.

[0036] In the embodiment shown, the chassis 2 comprises a pair of two side members 6, 7, visible in the figure. The side members 6, 7 are metal parts, generally flat, parallel to each other, which extend parallel to the median longitudinal axis X, respectively on either side of said median longitudinal axis X.

[0037] The lifting arm 3 extends in a longitudinal plane which is preferably median, that is to say that the median longitudinal axis X is included in this plane. The lifting arm 3 is articulated to the two longitudinal members 6, 7, between them, so as to be pivotally movable relative to the two longitudinal members 6, 7 about a transverse pivot axis P. The lifting arm 3 can be produced in different ways, in particular in the form of several telescopic sections. In this case, the handling machine 1 can in particular be a telescopic forklift. Alternatively, the lifting arm 3 is in the form of an arm of fixed length. One end of the lifting arm 3, opposite the pivot axis P, can carry a work tool 8 or a modular tool holder capable of receiving work tools 8 of several types. By work tool 8, we mean for example a pair of forks, a bucket, a winch, a clamp, etc.

[0038] The handling machine 1 comprises one or more linear actuators, not shown, such as hydraulic cylinders, which are each mounted articulated, on the one hand, on the lifting arm 3 and, on the other hand, on the chassis 2 of the handling machine 1, which makes it possible to pivot the lifting arm 3 relative to the chassis 2. The hydraulic cylinders are connected to a hydraulic circuit equipped with a hydraulic pump 9, visible on the. In the embodiment shown, the hydraulic pump 9 is driven by a motor, such as an electric motor 10. The hydraulic pump 9 as well as the electric motor 10 are here housed in the chassis 2, between the two side members 6, 7 but can be positioned at other locations.

[0039] Furthermore, the handling machine 1 comprises a driver's cab 11 in which a driver can sit and which is in particular equipped with a seat, not shown, and equipment for controlling the handling machine 1. The driver's cab 11 is positioned, on a first side of the median longitudinal axis X, on the left side in the embodiment shown, and between the front axle 4 and the rear axle 5. The driver's cab 11 is fixed to the chassis 2 and more particularly to one of the side members 7 thereof. The handling machine 1 also comprises a compartment 15 in which is housed an energy storage device which will be described later.

[0040] The handling machine 1 further comprises a box 12, visible in the, which is positioned relative to the driver's cab 11, on the other side of the median longitudinal axis X of the handling machine 1. The box 12 is fixed to the other of the side members 6. The box 12 and the driver's cab 11 are therefore positioned on either side of the pair of side members 6, 7.

[0041] Furthermore, the handling machine 1 comprises at least one motor, such as an electric motor 13, 14 for example, which is configured to ensure the movement of the handling machine 1. In the embodiment shown in the, the handling machine 1 comprises two electric motors 13, 14 ensuring its movement. Each electric motor 13, 14 is coupled to one of the front 4 or rear 5 axles via a transmission device.

[0042] At least one energy storage device is housed in the compartment 15 positioned under the driver's cab 11 and supported by a support device which will be described later. In the embodiment shown, the energy storage device, which is housed in the aforementioned compartment 15, comprises a tank 16 which is intended to store hydrogen and is connected to a fuel cell 17.

[0043] The tank 16 is, for example, suitable for storing hydrogen in the gaseous state at a maximum pressure of between 300 and 700 bars, for example of the order of 350 bars. According to another embodiment, the tank 16 is suitable for storing hydrogen in the solid state in the form of metal hydrides. The tank 16 is associated with a shut-off valve 18 which, in the closed state, prevents hydrogen from escaping from the tank 16.

[0044] The tank 16 is connected to the fuel cell 17 by a circuit which is in particular equipped with a pressure regulator, not illustrated, which makes it possible to reduce the pressure in order to supply the fuel cell 17 with hydrogen having a pressure compatible with its operation, i.e. lower than that at which it is stored in the tank 16. In a manner known per se, the fuel cell 17 is the site of an oxidation-reduction reaction which transforms the hydrogen coming from the tank and the oxygen in the air supplied by the compressor into electricity, water and heat.

[0045] The handling machine 1 also comprises an electrical energy storage device comprising one or more batteries 19 and / or one or more supercapacitors. The terminals of the batteries 19 and / or the supercapacitors are connected to the electric motor(s) 10, 13, 14 in parallel with the fuel cell 17.

[0046] The handling machine 1 further comprises power electronic equipment, not illustrated, which comprises in particular a DC / DC voltage converter which is connected, on one side, to the fuel cell 17 and on the other side to the electric motors 10, 13, 14 and to the electrical energy storage device, here the batteries 19. The DC / DC voltage converter makes it possible to convert the voltage level delivered by the fuel cell 17 to the voltage level required by the electric motors 10, 13, 14 and the batteries 19. Control means, also not illustrated, are configured to control the fuel cell 17, the electric motors 10, 13, 14 as well as the DC / DC voltage converter as a function of the control signals delivered by control equipment of the handling machine, such as an accelerator pedal and / or a control joystick in particular. In the, the fuel cell 17 is housed in the box 12.

[0047] In another embodiment, not shown, the motor that is configured to ensure the movement of the handling machine is not an electric motor but a hydrogen internal combustion engine. Such engines are generally designated by the acronym HICE for "Hydrogen Internal Combustion Engine" in English. In this case, the hydrogen internal combustion engine can in particular be arranged, in place of the fuel cell 17 of the embodiment of FIGS. 1 and 2, that is to say in the box 12.

[0048] Furthermore, in other embodiments not shown, the energy storage device, which is housed in the compartment 15 under the driver's cab 11, is a device which stores electrical energy and typically comprises one or more batteries and / or one or more supercapacitors. In this case, the handling machine 1 may be devoid of tanks 16 intended to store hydrogen and of fuel cell 17 intended to recharge batteries and / or supercapacitors, the recharging of the batteries and / or supercapacitors then being capable of being carried out by charging terminals. Alternatively, the machine may also be equipped with one or more tanks 16 intended to store hydrogen which are positioned at one or more locations of the handling machine 1, different from the compartment 15, for example in the chassis 2 and / or in the box 12.

[0049] In relation to figures 3 to 6, a support device 20 is described below which is configured to support the energy storage device, housed in the compartment 15 positioned under the driver's cab 11, here a tank 16. In order to allow visualization of the energy storage device and its support device, the walls of the compartment 15 are not shown.

[0050] As shown in Figures 3 to 6, the support device 20 comprises a frame 21 inside which the tank 16 is fixed. The frame 21 consists of an assembly of rigid parts constituting a frame around the energy storage device. It comprises, for example, a plurality of metal beams extending parallel to the longitudinal direction of the handling machine 1 and connected to each other by metal beams extending transversely.

[0051] The support device 20 also comprises deformable connections 22, 26 which fix the frame 21 to the chassis 2 of the handling machine 1 and more particularly to the side member 7 to which the driver's cab 11 is fixed. As shown in Figures 4 and 5, when the driver's cab 11 and / or the chassis 2 deform so that the driver's cab 11 comes into contact against the frame 21 of the support device 20 and thus exerts on it a force having a vertical component directed from bottom to top, the deformations of the support device 20 are located primarily at the level of the deformable connections 22, 26, which makes it possible to avoid or at least limit the deformation of the frame 21 and of the energy storage device housed in said frame 21.Such deformations are particularly likely to occur during a rollover of the handling machine 1, when the inner side, here the right, of the driver's cab 11 comes into contact with the ground, so that the latter exerts on the driver's cab 11 an outwardly directed reaction force, shown diagrammatically by the arrow 23 in FIGS. 5 and 6. Thus, by favoring the deformations of the deformable connections 22, 26 over the deformations of the frame 21, the risks of destruction and explosion of the energy storage device are reduced.

[0052] In the embodiment of Figures 3 to 5, when the driver's cab 11 moves towards the frame 21 and comes into contact with it, it exerts on the frame 21 a force having a vertical component. The deformable connections 22, 26 are then stressed in bending by a force exerted on the frame 21 and having a vertical component directed from top to bottom. Also, in order for the deformation of the deformable connections 22, 26 to be favored compared to that of the frame 21, the bending stiffness of the deformable connections 20 for a bending force applied vertically to the frame 21 is less than the bending stiffness of the frame 21.

[0053] In one embodiment, the frame 21 and the deformable connections 22, 26 are made of steel, for example chosen from S235 steel and S500 steel which respectively have a yield strength of 235 MPa and 500 MPa and a Young's modulus of the order of 210 GPa. In such an embodiment, it is the geometry of the deformable connections 22, 26 which is adapted in order to give them a bending stiffness for the aforementioned force exerted on the frame 21, lower than that of the frame 21. To do this, the working section of the deformable connections 22, 26, that is to say the section where the effect of the deformation is the greatest for a force having the aforementioned characteristics, has an area which is smaller than the corresponding working section of the frame 21.In particular, the working section of the deformable links 22, 26 has a quadratic moment along an axis parallel to the median longitudinal axis X which is less than the quadratic moment of the working section of the frame 21 along this axis.

[0054] Illustrates the profile of a deformable connection 22 in a transverse plane, according to one embodiment. In this embodiment, the section of the deformable connection 22, seen in section in a longitudinal plane, is not constant and varies transversely. It is thus observed that the deformable connection 22 has sections 24, in a longitudinal plane, parallel to the median longitudinal axis X, the area of ​​which is reduced compared to the other sections. These sections 24 of reduced area thus form the working sections of the deformable connection 22. Such a geometry of the deformable connection 22 thus makes it possible to locate the stress concentrations in these sections 24 and to promote the bending deformation of the deformable connection 22.

[0055] Returning to Figures 3 to 5, it is observed that, according to an advantageous embodiment, the support device 20 has one or more stop elements 25 which are configured to serve as a support for the driver's cab 11 when it moves towards the support device 20 under the effect of the force, shown diagrammatically by the arrow 23. This stop element 25 projects upwards from the frame 21 towards the driver's cab 11 and is positioned on an upper surface of the frame 21 which is, preferably, located along an edge of the frame 21 which is transversely opposite the chassis 2. This arrangement makes it possible to control the point of contact between the driver's cab 11 and the support device 20.Furthermore, by positioning this stop element 25 along the edge of the frame 21 which is opposite the chassis 2, the lever arm between the point of application of the force and the deformable links 22, 26 makes it possible to further promote the deformation of the deformable links 22, 26 relative to that of the frame 21.

[0056] In other alternative or complementary embodiments, the deformable connections 22, 26 comprise at least one material having a modulus of elasticity lower than that of the metallic material from which the frame 21 is made. This material is, for example, chosen from elastomers, such as rubber.

[0057] Larepresents, schematically, a support device 20 and its method of attachment to the handling machine 1 according to a first embodiment. It can be seen here that the frame 21 is attached to the spar 7 by deformable connections 22, 26 which have different geometries and characteristics. The deformable connection 22 which is attached to the upper part of the frame 21 is, for example, welded to the frame 21 and attached to the spar 7 by a fixing member 27, such as a screw-nut assembly.In this embodiment, the deformable connection 26 which is fixed to the lower part of the frame 21 comprises a fixing lug 28 which projects downwardly from the frame 21, a spacer 29 which is disposed between the fixing lug 28 and the side member 7 and a fixing member 30, such as an assembly comprising a screw and a nut, which passes through an orifice formed in the fixing lug 28, an orifice formed in the spacer 29 and an orifice formed in the side member 7 in order to secure the fixing lug 28, the spacer 29 and the side member 7 to each other. In such a deformable connection 26, the deformation is localized at the level of the fixing lug 28 which comprises a section having an area smaller than that of the frame 21 and which thus forms the working section of the deformable connection 26.

[0058] Note that advantageously, the support device 20 comprises a plurality of deformable links 22, 26 which are distributed longitudinally along the frame 21. Furthermore, according to one embodiment, it is particularly advantageous for the deformable links 22, 26 to have a preferred direction of deformation so that they deform more when a force is applied vertically to the frame 21 than when a force is applied horizontally, which is particularly the case during frontal or lateral impacts. To do this, the deformable links 22, 26 have a bending stiffness for a force applied to the frame 21 horizontally, parallel to the median longitudinal axis X, which is greater than the bending stiffness of the deformable links 22, 26 for a force applied to the frame 21 vertically.Advantageously, the deformable connections must also be able to deform without breaking for any impact having an energy less than or equal to 11.6 kJ.

[0059] Larepresente, a support device 20 and its method of fixing to the handling machine 1 according to a second embodiment. This second embodiment does not differ from that described above in relation to the lacquer by the structure of the deformable connection 26 which is fixed to the lower part of the frame 21. Indeed, in this embodiment, the spacer 31 which is arranged between the fixing lug 28 and the side member 7 is riveted on the one hand to the fixing lug 28 and on the other hand to the side member 7.

[0060] Schematically illustrates a support device 20 and its method of attachment according to a third embodiment. This embodiment differs from the embodiments described above in that the support device 20 is not attached to the side member but to the floor 32 of the driver's cab 11. Therefore, in such an embodiment, the deformable connections 33, 34 are stressed in compression when the driver's cab 11 and / or the chassis 2 deform so that the driver's cab 11 moves towards the support device 20. Thus, the deformable connections 33, 34 have a compressive stiffness for an applied force with a vertical component oriented from top to bottom, which is lower than that of the frame 21.

[0061] In connection with the, the dimensions of a frame 21 of a support device 20 according to an exemplary embodiment are observed. In this embodiment, the energy storage device which is fixed inside the frame comprises two hydrogen storage tanks 16. According to other variants, the energy storage device may comprise only one tank 16 or more than two. Each tank 16 has a cylindrical shape of revolution around an axis which is advantageously oriented parallel to the median longitudinal axis X. The frame has for example a length L of approximately 1.5 m, a width l of approximately 0.5 m and a height h of approximately 0.4 m.

[0062] Furthermore, according to an advantageous embodiment, the handling machine 1 comprises a safety device 35, illustrated schematically in the. This safety device 35 comprises one or more accelerometers 36, that is to say a sensor which delivers a signal representative of the acceleration of the handling machine 1 as well as one or more angle sensors 37, that is to say a sensor which delivers a signal representative of an angle formed by the handling machine 1 with respect to a horizontal plane. The accelerometer(s) 36 and the angle sensor(s) 37 are connected to a control unit 38 which is also connected to the shut-off valve 18 associated with each tank 16 and configured to control it.The control unit 38 is configured to compare the signal representative of the acceleration of the handling machine 1 delivered by the accelerometer 38 with an acceleration threshold value and thus detect a shock when the absolute value of the detected acceleration is greater than an acceleration threshold value. The control unit 38 is also configured to compare the signal representative of the angle formed by the handling machine 1 with respect to a horizontal plane, delivered by the angle sensor 37, with an angle threshold and thus detect a rollover when the value of the detected angle is greater than the angle threshold.

[0063] Furthermore, the control unit 38 is also configured to control the closing of the shut-off valve 18 associated with the tank 16 in response to the detection of an impact or overturning. This makes it possible to isolate the hydrogen circuit and thus limit the risks of fire or explosion, in the event of impacts and / or overturning of the handling machine 1.

[0064] According to an alternative or complementary variant, the control unit 38 is also configured to cut off a high-voltage circuit of the handling machine 1 by a relay.

[0065] The control unit 38 may also be configured to transmit an alert signal to the driver informing him that an impact and / or a rollover has been detected and / or that the machine has been secured by an action of closing the stop valve and / or cutting off the high-voltage circuit. The alert signal is, for example, a message that is displayed on a dashboard of the handling machine 1.

[0066] Although the invention has been described in connection with several particular embodiments, it is obvious that it is in no way limited thereto and that it includes all technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.

[0067] The use of the verb "comprise", "comprise" or "include" and its conjugated forms does not exclude the presence of other elements or other steps than those set out in a claim.

[0068] In the claims, any reference sign in parentheses cannot be interpreted as a limitation of the claim.

Claims

Handling machine (1) comprising:- a chassis (2) having a median longitudinal axis (X);- a lifting arm pivotally mounted on the chassis (2);- a driver's cab (11) which is fixed to the chassis (2) and is positioned on a first side of the chassis (2) relative to the median longitudinal axis (X) of the chassis (2);- an energy storage device (16, 19) which is housed in a compartment (15) positioned under the driver's cab (11);- a support device (20) which is configured to support the energy storage device (16, 19);the support device (20) comprising deformable links (22, 26, 33, 34) and a frame (21) inside which the energy storage device (16, 19) is fixed, the deformable links (22, 26, 33, 34) being configured to fix the frame (21) to the chassis (2) or to the driver's cab (11) and having a stiffness for a first force applied to the support device (20) with a vertical component which is less than a stiffness of the frame (21) for said first force such that the deformable links (22, 26, 33, 34) deform more than the frame (21) when said first force is exerted.; A handling machine (1) according to claim 1, wherein the deformable connections (22, 26, 33, 34) are configured to fix the frame (21) to the chassis (2) and wherein the support device (20) comprises a stop element (25) which is configured to act as a support for the driver's cab (11) when said driver's cab (11) deforms under the effect of a deformation force which is exerted on said driver's cab (11) with a horizontal component directed transversely outwards, said stop element (25) projecting upwards from the frame (21) towards the driver's cab (11) and being positioned on an upper surface of the frame (21), located along an edge of the frame (21) which is transversely opposite the chassis (2). Handling machine (1) according to claim 1 or 2, wherein the deformable connections (22, 26, 33, 34) have a working section corresponding to the application of the first force on the frame (21) which has an area smaller than that of a working section of the frame (21). Handling machine (1) according to any one of claims 1 to 3, in which the frame (21) is made of a first metallic material having a first modulus of elasticity and in which the deformable connections (22, 26, 33, 34) comprise a second material having a second modulus of elasticity lower than the first modulus of elasticity. Handling machine (1) according to any one of claims 1 to 4, in which the deformable connections (22, 26, 33, 34) have a stiffness corresponding to the application of the first force on the frame (21) which is greater than a stiffness of the deformable connections (22, 26, 33, 34) corresponding to the application of a force on the frame (21), horizontally and parallel to the median longitudinal axis (X). Handling machine (1) according to any one of claims 1 to 5, in which the energy storage device is chosen from a pressurized gas storage tank (16) and an electrical energy storage unit. Handling machine (1) according to claim 6, wherein the energy storage device is a pressurized gas storage tank which is suitable for storing hydrogen at a maximum pressure of between 300 and 700 bars. A handling machine according to any one of claims 1 to 7, wherein the deformable connections (22, 26) fix the frame (21) to the chassis (2) and wherein said deformable connections (22, 26) have a bending stiffness corresponding to the application of the first force which is less than a bending stiffness of the frame (21) for said first force. Handling machine (1) according to claim 8, wherein the chassis (2) comprises a first side member (7) and a second side member (8) which extend parallel to the median longitudinal axis (X) on either side of said median longitudinal axis (X), the first side member (7) being arranged on the first side of the chassis (2) relative to the median longitudinal axis (X), the driver's cab (11) and the deformable connections (22, 26) being fixed to said first side member (7). Handling machine (1) according to claim 9, wherein the support device (20) comprises at least two deformable links (22, 26, 33, 34) which are distributed longitudinally along the chassis (2). A handling machine according to any one of claims 1 to 7, wherein the deformable connections (22, 26) fix the frame (21) to the driver's cab (11) and wherein said deformable connections (33, 34) have a compressive stiffness corresponding to the application of the first force which is less than a compressive stiffness of the frame (21) for said first force.

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