Handling machine comprising a power module and a power module removal mechanism

Abstract

[Handling machine (101; 201; 301; 401) comprising: - a chassis (2) movable relative to the ground surface (S); - a power module (30) for supplying electrical power to the handling machine; and - a lowering mechanism (40) configured to move the power module (30) in a lowering motion, the lowering motion bringing the power module (30) from an initial position, in which the power module is above the ground surface (S) in a vertical direction (ZZ) of the handling machine, to a lowering position, in which the lowering motion includes a circular translational motion, and the lowering position is located lower than the initial position in the vertical direction (ZZ) of the handling machine. Figure for the abbreviation: Fig. 2]

Description

Title of the invention: Handling machine comprising a power module and a mechanism for removing the power module Technical field

[0001] The invention relates to the field of handling machines. More specifically, the invention relates to a handling machine comprising a power module for supplying electrical power to the handling machine. Technological background

[0002] The integration of environmental considerations (reduction of greenhouse gas emissions) and regulatory constraints (for warehouse handling, for example) has led to a growing demand for electric handling machines.

[0003] For this purpose, it has been proposed to equip handling machines with a power module to supply electrical power to the handling machine.

[0004] However, in certain use cases, an operator of the handling machine may need to bring the power module to a deposit position, for example on the ground surface, in particular to carry out a maintenance operation on the power module.

[0005] However, if the handling machine is large, the handling machine is likely to require significant electrical power, and the power module is then likely to have a significant mass. For example, the mass of the power module may be of the order of 100 kg or more. In this case, it may be difficult for the operator to bring the power module to a deposit position without the aid of another handling machine, such as a masted forklift or a telescopic forklift. However, it may be that such another handling machine is not available at the time when the operator needs to bring the power module to a deposit position. Summary

[0006] One idea underlying the invention is to equip the handling machine with a drop-off mechanism that allows an operator of the handling machine to bring the power module to a drop-off position, for example on the ground surface, without the assistance of another handling machine.

[0007] According to one embodiment, the invention provides a handling machine comprising: - a chassis movable relative to the ground surface; - a power module for supplying electrical power to the handling machine; and - a drop-off mechanism connected to the chassis and configured to move the power module in a drop-off movement, the drop-off movement bringing the power module from an initial position, in which the power module is above the ground surface in a vertical direction of the handling machine, to a drop-off position, wherein the depositing movement comprises a circular translational movement, and the depositing position is located lower than the initial position in the vertical direction of the handling machine.

[0008] By means of the removal mechanism, an operator of the handling machine is able to bring the power module to a removal position without the assistance of another handling machine. The operator can then perform a maintenance operation on the power module.

[0009] The removal mechanism may further allow the operator to replace the power module with a replacement power module also designed to be moved by the removal mechanism, for example when the power module is no longer able to supply the electrical power necessary for the operation of the handling machine.

[0010] By "circular translational movement" is meant a planar movement in which all the points of the power module describe trajectories which are circles having identical radii and different centers. A circular translational movement is therefore distinct from a rotation, in which all the points of the power module describe trajectories which are circles having different radii and the same center.

[0011] According to embodiments, such a handling machine may comprise one or more of the following characteristics.

[0012] According to one embodiment, the removal movement consists of a circular translation movement. Thus, the power module can maintain throughout the removal movement the orientation in space that it has in its initial position.

[0013] According to another embodiment, the depositing movement comprises a circular translation movement preceded or followed by one or more other movements, such as a vertical translation, a vertical translation or a rotation.

[0014] According to one embodiment, the power module in the removal position is further from the chassis than in the initial position.

[0015] According to one embodiment, the removal mechanism is configured such that the removal movement can cause the power module to rest on the surface from the ground. In other words, the drop-off mechanism is configured so that in the drop-off position, the power module rests on the ground surface. However, even in this case, the drop-off mechanism can also be used to drop the power module onto a platform located above the ground surface in the vertical direction of the handling machine, such as the bed of a truck or other machine. According to another embodiment, the drop-off mechanism is configured so that in the drop-off position, the power module is above the ground surface in the vertical direction.

[0016] According to one embodiment, the handling machine further comprises two crosspieces secured to the chassis, the crosspieces being spaced apart and projecting from the chassis, and the depositing mechanism comprises two first arms, each of the first arms being pivotally mounted at a first end on one of the crosspieces so as to be able to pivot about a main axis, and being pivotally mounted at a second end to the power module.

[0017] According to one embodiment, the removal mechanism further comprises two jacks, each of the jacks being articulated at one end to the chassis and at the other end to one of the first arms between the first end and the second end of said first arm.

[0018] Thus, the extension of the jacks causes the first arms to pivot around the main axis, and at the same time, the power module is caused to pivot around its pivot connections to the first arms, so that the power module describes the aforementioned circular translational movement.

[0019] Conversely, the retraction of the jacks can cause the power module to describe a movement opposite to the circular translation movement, to return the power module to its initial position.

[0020] According to one embodiment, the two cylinders are hydraulic, pneumatic, or electric cylinders. According to a particular embodiment, the two cylinders are hydraulic cylinders. If other functions of the handling machine are hydraulic, it is then not necessary to equip the handling machine with a non-hydraulic power source dedicated to actuating the cylinders.

[0021] According to one embodiment, the handling machine further comprises a control device configured to control an extension of the cylinders.

[0022] Thus, the operator of the handling machine can control the movement of removing the power module at will.

[0023] According to one embodiment, the control device is configured to control an extension and a retraction of the two cylinders.

[0024] Thus, the operator of the handling machine can also control at will the movement of depositing the power module and the reverse movement of the removal movement.

[0025] According to one embodiment, the removal mechanism further comprises two gas springs, each of the gas springs being articulated at one end to the chassis and at the other end to one of the first arms between the first end and the second end of said first arm.

[0026] Thus, the extension of the gas springs causes the first arms to pivot around the main axis, in a manner identical to the extension of the cylinders. The extension of the gas springs can be caused manually by the operator of the handling machine by the operator grasping the power module.

[0027] According to one embodiment, the power module in the initial position is located above the two crosspieces in the vertical direction of the handling machine.

[0028] According to one embodiment, the power module in the initial position and in the deposit position is located between the two crosspieces in the longitudinal direction of the handling machine.

[0029] According to one embodiment, the removal mechanism further comprises two second arms, each of the second arms being pivotally mounted at a first end on one of the crosspieces so as to be able to pivot about a secondary axis parallel to the main axis, and being pivotally mounted at a second end to the power module.

[0030] Due to the presence of the additional arms, the power module is further prevented from oscillating around its pivot connections with the arms than if only the first arms were present.

[0031] According to one embodiment, the two first arms and the two second arms are parallel to each other and all have an identical length.

[0032] Thus, two first arms and the two second arms form a system similar to a four-bar mechanism of the deformable parallelogram type (or articulated parallelogram), making it possible to simply carry out the circular translation movement described above.

[0033] According to one embodiment, the handling machine further comprises a front axle and a rear axle for propelling the chassis, the front axle and the rear axle being spaced apart in a longitudinal direction of the handling machine, the longitudinal direction being perpendicular to the vertical direction.

[0034] According to one embodiment, the power module in the initial position is between the front axle and the rear axle in the longitudinal direction of the handling machine. According to one embodiment, the power module in the removal position is further from the chassis than in the initial position in a transverse direction of the handling machine, the transverse direction being perpen- dicular to the longitudinal direction.

[0035] According to one embodiment, the handling machine further comprises a box, the box being arranged between the front axle and the rear axle in the longitudinal direction of the handling machine, and the box projecting from the chassis in the transverse direction of the handling machine.

[0036] According to one embodiment, the power module in the initial position is located higher than the box in the vertical direction of the handling machine. More particularly, the two crosspieces can be located higher than the box in the vertical direction of the handling machine.

[0037] Thus, the presence of the box does not interfere with the operation of the removal mechanism.

[0038] According to one embodiment, the power module in the deposited position rests on the ground surface further from the chassis than the box in the transverse direction of the handling machine.

[0039] Thus, the presence of the box does not interfere with the removal movement of the power module or with the manipulation of the power module in the removal position.

[0040] According to one embodiment, the first arms are convex and have a convexity facing the chassis. In particular, according to one embodiment, the first arms and the second arms are convex and have a convexity towards the chassis.

[0041] Thus, it is easier to ensure that the presence of the box does not interfere with the first arms and, where appropriate, with the second arms than if the arms were rectilinear.

[0042] According to one embodiment, the chassis comprises two parallel side members spaced along the transverse direction of the handling machine.

[0043] According to one embodiment, the two crosspieces protrude from one of the two side members, in the transverse direction of the handling machine.

[0044] According to one embodiment, the handling machine comprises a cabin for an operator of the handling machine, the cabin projecting from the other of the two side members, in the transverse direction of the handling machine and in an opposite direction of the two cross members.

[0045] For propulsion of the handling machine, one of the front axle and the rear axle is a drive axle, or both the front axle and the rear axle are drive axles.

[0046] According to one embodiment, the handling machine comprises one or more electric motors coupled by a mechanical transmission chain to the drive axle or axles.

[0047] The mechanical transmission chain may comprise one or more elements chosen from the group consisting of: a reduction gear train, a transmission shaft and a universal joint. The electric motor may be a motor dedicated to propulsion.

[0048] According to one embodiment, the handling machine comprises a first electric propulsion motor coupled to the front axle by a first mechanical transmission chain and a second electric propulsion motor coupled to the rear axle by a second mechanical transmission chain.

[0049] According to one embodiment, some or all of the aforementioned electric motors are arranged in an internal space of the box.

[0050] According to one embodiment, the handling machine comprises one or more electric motors coupled by a hydraulic transmission chain to the drive axle or axles. The hydraulic transmission chain may comprise a hydraulic pump driven by the electric motor and at least one hydraulic motor driven by a hydraulic flow generated by the hydraulic pump.

[0051] The hydraulic transmission chain may be a hydrostatic transmission chain, i.e. in a closed circuit. The hydraulic pump and the electric motor may be dedicated to propulsion. Alternatively, the hydraulic pump and the electric motor may be shared with other hydraulic functions of the machine, such as a hydraulic actuation function of the lifting arm or other.

[0052] According to one embodiment, the aforementioned hydraulic pump and / or electric motor are arranged in an internal space of the box.

[0053] According to one embodiment, the power module comprises two fork passages, the two fork passages being spaced apart and shaped to allow handling of the power module using a forklift, for example using a masted forklift.

[0054] According to one embodiment, the fork passages are formed on a lower side of the power module.

[0055] Thus, the power module in the deposited position can rest on the fork passages, in particular on the ground surface.

[0056] According to one embodiment, the power module comprises a housing.

[0057] According to one embodiment, each of the first arms is pivotally mounted at a second end to the housing, preferably at an upper end of the housing.

[0058] According to one embodiment, the power module comprises one of: - a battery element; - a supercapacitor; - a voltage generator driven by an internal combustion engine; - a fuel cell.

[0059] According to one embodiment, the power module comprises one or more battery elements and one or more supercapacitors. Preferably, the battery element(s) and the supercapacitor(s) are arranged in an internal space of the housing.

[0060] According to one embodiment, the power module comprises one or more battery elements. Preferably, the battery element(s) are arranged in an internal space of the housing.

[0061] According to one embodiment, the power module comprises a voltage generator driven by an internal combustion engine. Preferably, the voltage generator and the internal combustion engine are arranged in an internal space of the housing.

[0062] According to one embodiment, the power module further comprises a fuel tank for powering the internal combustion engine, the fuel tank being optionally arranged in the internal space of the housing.

[0063] According to one embodiment, the power module comprises a fuel cell. Preferably, the fuel cell is arranged in an internal space of the housing.

[0064] According to one embodiment, the power module further comprises at least one hydrogen tank for supplying the fuel cell, the at least one hydrogen tank being optionally arranged in the internal space of the housing.

[0065] According to one embodiment, the handling machine comprises an electrical power input socket.

[0066] According to one embodiment, the power module comprises an electrical connector configured to be electrically connected to the electrical power input socket.

[0067] According to one embodiment, one of the electrical power input socket and the electrical connector comprises a voltage converter and / or a voltage rectifier.

[0068] According to one embodiment, the handling machine further comprises a lifting arm mounted on the chassis so as to be able to pivot about a horizontal axis. This embodiment is for example implemented in the form of a forklift with a non-steerable telescopic arm or a front loader.

[0069] According to one embodiment, the lifting arm extends parallel to the longitudinal direction of the handling machine, and the lifting arm is articulated to the two side members between the two side members so as to be pivotally movable relative to the two side members around the horizontal axis, the horizontal axis extending perpendicular to the longitudinal direction of the handling machine.

[0070] According to one embodiment, the chassis comprises a lower structure and a steerable upper structure, the steerable upper structure being rotatably mounted on the lower structure about an axis of rotation parallel to the vertical direction of the handling machine, the lifting arm being mounted on the steerable upper structure. This embodiment is for example implemented in the form of a forklift with a steerable telescopic arm or an excavator.

[0071] According to one embodiment, the removal mechanism is linked to the lower structure. According to another embodiment, the removal mechanism is linked to the steerable upper structure. Brief description of the figures

[0072] The invention will be better understood, and other aims, 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 appended drawings.

[0073] [Fig-1] [Fig.l] is a schematic view, seen from above, of a machine of my nutrition including a power module.

[0074] [Fig.2] [Fig.2] is a schematic view, from the front, of the machine of my operation of [Fig.l], showing for the purposes of explanation a movement of removal of the power module.

[0075] [Fig.3] [Fig.3] is a partial perspective view of an implementation by particular of the handling machine of figures 1 and 2, in which the power module is in its initial position.

[0076] [Fig.4] [Fig.4] is a view similar to [Fig.3], in which the module of power is in an intermediate position between the initial position and the drop-off position.

[0077] [Fig.5] [Fig.5] is a view similar to [Fig.3], in which the module of power is in its position of deposit on the ground surface.

[0078] [Fig.6] [Fig.6] is an enlarged partial perspective view of the module of power shown in Figures 3 to 5, showing an example of pivot connections of the power module.

[0079] [Fig.7] [Fig.7] is a functional block diagram of an embodiment of the power module.

[0080] [Fig.8] [Fig.8] is a functional block diagram of another embodiment of the power module.

[0081] [Fig.9] [Fig.9] is a functional block diagram of yet another mode of realization of the power module.

[0082] [Fig. 10] [Fig. 10] is a perspective view showing an electric motor for propelling the frame of the handling machine of Figures 1 to 5 and a chain of transmission between this electric motor and the axles of the handling machine.

[0083] [Fig. 11] [Fig. 11] is a view similar to [Fig.l], showing a top view of a handling machine according to another embodiment.

[0084] [Fig.12] [Fig.12] is a view similar to [Fig.1], showing in top view a handling machine according to yet another embodiment.

[0085] [Fig. 13] [Fig. 13] is a view similar to [Fig.2], showing a front view of a handling machine according to yet another embodiment. Description of the embodiments

[0086] In [Fig.l], a top view of a handling machine 101 (hereinafter referred to as “the machine 101” for convenience) according to one embodiment is shown.

[0087] The machine 101 comprises a chassis 2 movable relative to the ground surface S (see [Fig.2]). To enable the chassis 2 to be propelled, the machine 101 is provided with a front axle 3 and a rear axle 4, spaced apart along the longitudinal direction XX of the machine 101. The front axle 3 is here provided with two front wheels 3A arranged on either side of the chassis 2 along the transverse direction YY of the machine 101. Similarly, the rear axle 4 is provided with two rear wheels 4A arranged on either side of the chassis 2 along the transverse direction YY of the machine 101.

[0088] The chassis 2 comprises two side members 21 and 22. The side members 21 and 22 are generally flat metal parts parallel to each other. The largest dimension of the side members 21 and 22 extends in the longitudinal direction XX. The side members 21 and 22 are spaced in the transverse direction YY.

[0089] The machine 101 further comprises a lifting arm 98. The lifting arm 98 extends in the longitudinal direction XX. The lifting arm 98 is articulated to the side members 21 and 22, between the side members 21 and 22, so as to be pivotally movable relative to the side members 21 and 22 about a horizontal pivot axis PP. The pivot axis PP is here parallel to the transverse direction YY.

[0090] The lifting arm 98 can be produced in different ways, in particular in the form of several telescopic sections, or alternatively in the form of an arm of fixed length. One end of the lifting arm 98 opposite the pivot axis PP can carry a modular tool holder 99 capable of receiving work tools of several types. By work tool, we mean for example a pair of forks, a bucket, a winch, a clamp, etc. Alternatively, the end of the lifting arm 98 carries a work tool instead of the modular tool holder 99.

[0091] The machine 101 further comprises a cabin 95. The cabin 95 is configured so that an operator of the machine 101 can take a seat in the cabin 95. The cabin 95 comprises the elements necessary for controlling the machine 101 by the operator.

[0092] The machine 101 is partially or fully electrically operated, by which it is meant that some or all of the functionalities of the machine 101, namely some or all of the propulsion of the chassis 2, the actuation of the lifting arm 98 and / or the tool holder 99, or the operation of accessories of the machine 101, require electrical power.

[0093] The machine 101 is therefore provided with a power module 30. All or part of the necessary electrical power is supplied to the machine 101 by the power module 30. The power module 30 can be produced in various ways, which will be described later, in order to supply electrical power to the machine 101.

[0094] As can be seen in [Fig.l], the power module 30 is arranged between the front axle 3 and the rear axle 4 in the longitudinal direction XX. Furthermore, the power module 30 projects from the chassis 2, more specifically from the side member 22, in the transverse direction YY. The cabin 95 projects from the chassis 2, more specifically from the side member 21, in the transverse direction YY.

[0095] In certain use cases, an operator of the machine 101 may need to deposit the power module 30, for example on the surface of the ground S. We will first describe the overall principle of a movement for depositing the power module 30 which makes it possible to achieve this goal. We will then describe particular implementations of this depositing movement with reference to the following figures. It should be noted that [Fig. 1] and [Fig. 2] are schematic views provided for explanatory purposes, and do not necessarily reflect the actual dimensions of the various elements of the machine 101 shown in these figures.

[0096] [Fig.2] is a front view (along the longitudinal direction XX) of the machine 101. The lifting arm 98 and the tool holder 99 are not shown in [Fig.2],

[0097] The power module 30 is shown in a solid line in an initial position. In this initial position, the power module 30 is above the surface of the ground S in the vertical direction ZZ of the machine 101.

[0098] To place the power module 30 on the surface of the ground S, a placing mechanism 40 (not shown in FIGS. 1 and 2 and which will be described later) causes the power module 30 to describe a placing movement, which here consists of a circular translation movement.

[0099] By “circular translational movement” is meant a planar movement in which all the points of the power module 30 describe trajectories which are circles having identical radii and different centers. A circular translational movement is therefore distinct from a rotation, in which all the points of the power module 30 describe trajectories which are circles having radii different and the same center.

[0100] Referring to [Fig. 2], it is clear that by making the power module 30 describe a circular translational movement, the power module 30 maintains its orientation in space between its initial position (shown in solid lines), a deposit position 30-D (shown in broken lines) where the power module 30 rests on the surface of the ground S, and intermediate positions 30-M (one of which is shown in dotted lines) between the initial position and the deposit position 30-D. In particular, the power module 30 can maintain throughout the deposit movement the orientation in space that it has in its initial position. In particular, this orientation can be horizontal, which allows the power module 30 not to tilt, in particular when the power module 30 reaches the deposit position 30-D.

[0101] Alternatively, the movement of removing the power module 30 may be more complex, and thus comprise a circular translation movement preceded or followed by one or more other movements, such as a vertical translation, a vertical translation or a rotation.

[0102] With reference to Figures 3 to 6, a particular implementation of the machine 101, the power module 30 and the removal mechanism 40 is described.

[0103] As shown in Figures 3 to 5, the machine 101 comprises two crosspieces 23 and 24. The crosspieces 23 and 24 are spaced along the longitudinal direction XX and preferably parallel to each other. The crosspieces 23 and 24 project from the chassis 2, more specifically from the side member 22.

[0104] The removal mechanism 40 comprises two arms 43 and 44, on either side of the power module 30 in the longitudinal direction XX.

[0105] The lower end of the arm 43 is pivotally mounted at the end of the cross member 23 opposite the spar 22, here by means of a clevis connection 43C. Similarly, the lower end of the arm 44 is pivotally mounted at the end of the cross member 24 opposite the spar 22, here by means of a clevis connection 44C. Preferably, the clevis connections 43C and 44C have the same axis of rotation, which bears the reference AA in the drawings.

[0106] The upper end of the arm 43 is pivotally mounted to the power module 30, here by means of a pivot connection 43D. Similarly, the upper end of the arm 44 is pivotally mounted to the power module 30, here by means of a pivot connection 44D. Preferably, the pivot connections 43D and 44D have the same axis of rotation, and more preferably still, this axis of rotation is parallel to the axis AA.

[0107] The removal mechanism 40 further comprises two jacks 53 and 54 on either side of the power module 30 in the longitudinal direction XX.

[0108] The jack 53 comprises a barrel 53A and a rod 53B sliding in the barrel 53A. A The end of the barrel 53A is pivotally mounted to the chassis 2, here to the side member 22. The end of the rod 53B opposite the barrel 53A is pivotally mounted to the arm 43, between the lower end and the upper end of the arm 43.

[0109] Similarly, the jack 54 comprises a barrel 54A and a rod 54B sliding in the barrel 54A. One end of the barrel 54A is pivotally mounted to the chassis 2, here to the side member 22. The end of the rod 54B opposite the barrel 54A is pivotally mounted to the arm 44, between the lower end and the upper end of the arm 44.

[0110] [Fig. 3] shows the power module 30 in its initial position mentioned above. In this initial position, the power module 30 is above the ground, and also above the crosspieces 23 and 24, in the vertical direction ZZ. [Fig. 4] and [Fig. 5] show that the extension of the jacks 53 and 54 causes the arms 43 and 44 to pivot about the links 43C and 44C. At the same time, the power module 30 is caused to pivot about the links 43D and 44D.

[0111] Thanks to the rotation of the arms 43 and 44 around the axis AA caused by the extension of the jacks 53 and 54, the power module 30 describes a circular translational movement. This circular translational movement brings the power module 30 from its initial position ([Fig.3]) to its depositing position ([Fig.5]) via intermediate positions ([Fig.4]).

[0112] In addition, with the removal mechanism 40, the power module 30 can maintain throughout the removal movement the orientation in space that it has in its initial position shown in [Fig. 3]. In particular, this orientation can be horizontal as shown in Figures 3, 4 and 5, which allows the power module 30 not to tilt, in particular when the power module 30 reaches the removal position shown in [Fig. 5].

[0113] Furthermore, with the removal mechanism 40, the power module 30 is further from the chassis 2 along the transverse direction YY in the removal position ([Fig.5]) than in the initial position ([Fig.3]). This allows the operator OP to easily intervene on the power module 30, without being hindered by other elements of the machine 101.

[0114] Of course, the jacks 53 and 54 are retractable, and can thus cause the power module 30 to describe a movement opposite to the removal movement, to return the power module 30 to its initial position shown in [Fig.3].

[0115] The cylinders 53 and 54 may be of any suitable type, and may in particular be hydraulic, pneumatic or electric cylinders.

[0116] The above-described extension and retraction of the cylinders 53 and 54 are controlled by the operator OP by means of a suitable control device. For example, this control device may be arranged in the cabin 95. Alternatively, this control device may take the form of a portable control box 94 (see [Fig. 3] and [Fig.4]).

[0117] According to a variant not shown, the two cylinders 53 and 54 can be replaced by two gas springs (also known as gas cylinders), which are pivotally mounted to the crosspieces 23 and 24 and to the power module 30 in a manner identical to the cylinders 53 and 54. In this case, the extension of the two gas springs is caused manually by the operator OP by grasping the power module 30. The movement for removing the power module 30 is identical in this case. The retraction of the gas springs is carried out according to the known operation of a gas spring and does not need to be controlled.

[0118] It can also be seen in Figures 3 to 5 that the removal mechanism 40 may comprise two additional arms 45 and 46, on either side of the power module 30 in the longitudinal direction XX. These additional arms 45 and 46 are pivotally mounted in an identical manner to the arms 43 and 44. More specifically, the lower ends of the additional arms 45 and 46 are pivotally mounted to the crosspieces 23 and 24, here by means of clevis connections 45C and 46C, and the upper ends of the additional arms 45 and 46 are pivotally mounted to the power module 30, here by means of pivot connections 45D and 46D.

[0119] It is understood that thanks to the presence of two pairs of arms 43, 44 and 45, 46, the power module 30 is more prevented from oscillating around its pivot connections with the arms than if only one pair of arms 43, 44 or 45, 46 were present. The power module 30 can therefore even better maintain its horizontal orientation during the removal movement. This is particularly advantageous when the power module 30 has a significant mass, for example of the order of 100 kg or more.

[0120] On the other hand, it is not necessary for the additional arms 45 and 46 to be associated with cylinders similar to the cylinders 53 and 54. The operation described above of the depositing mechanism 40 only requires the two cylinders 53 and 54.

[0121] Preferably, the axes of rotation of the yoke connections 45C and 46C and of the pivot connections 45D and 46D are parallel to each other and parallel to the axis AA. Even more preferably in this case, the arms 43, 44, 45, 46 are parallel to each other and all have an identical length. Thus, the arms 43, 44, 45, 46 form a system similar to a four-bar mechanism of the deformable parallelogram type (or articulated parallelogram), making it possible to simply carry out the circular translation movement described above.

[0122] Preferably, the yoke connections 43C and 45C (respectively 44C and 46C) are located on opposite surfaces of the cross member 23 (respectively 24).

[0123] Preferably, the arms 43 and 44 are pivotally mounted on the crosspieces 23 and 24 on the outer surfaces thereof, i.e. on the surfaces of the crosspieces 23 and 24 which are not opposite each other. Consequently, the jacks 53 and 54 are also located externally in the longitudinal direction XX relative to the crosspieces 23 and 24. This makes it easier to free up sufficient space for the extension of the rods 53B and 54B of the jacks 53 and 54, and also sufficient space for the rotation of the barrels 53A and 54A of the jacks 53 and 54 relative to the side member 22.

[0124] It can also be seen in Figures 3 to 5 that the power module 30 comprises two forklift pockets 31. The two forklift pockets 31 are spaced apart and shaped to receive two forks of a forklift, such as a masted forklift for example. Thus, when the power module 30 is in the removal position, the power module 30 can be lifted and moved by the forklift. In other words, the forklift pockets 31 allow handling of the power module 30 using the forklift.

[0125] In the example shown, the fork passages 31 are formed on a lower side of the power module 30, so that in the deposited position (see [Fig. 5]), the power module 30 rests on the ground surface S via the fork passages 31. Alternatively, other positions of the fork passages 31 on the power module 30 are conceivable.

[0126] [Fig.6] is an enlarged partial view of the power module 30 and shows a particular example of the embodiment of the pivot connections 44D and 46D.

[0127] In this exemplary embodiment, the pivot connection 44D comprises a cylindrical rod 63A. The power module 30 comprises a wing 64 having a bore, and a hollow cylinder 65 aligned with this bore. The rod 63A is received in the bore and in the hollow cylinder 65.

[0128] A free end 63AA of the rod 63A is received in a connecting element, not shown, secured to the upper end of the arm 44, this connecting element being able to pivot relative to the rod 63A. In addition, the hollow cylinder 65 has an L-shaped notch 65L, and the rod 63A comprises a manipulation rod 63B received in the notch 65L. The manipulation rod 63B can be manipulated by the operator OP so as to move the manipulation rod 63B between a locking position 65-1 and a release position 65-2, the positions 65-1 and 65-2 being defined by the notch 65L. Thus: - when the manipulation rod 63B is in the locking position 65-1, the cooperation between the manipulation rod 63B and the notch 65L prevents the rod 63A from pivoting, but since the connecting element of the arm 44 can pivot relative to the rod 63A, the power module 30 can pivot relative to the arm 44 as previously described; - when the operator OP brings the manipulation rod 63B into the release position 65-2, the free end 63AA of the rod 63A is released from the connecting element of the arm 44, which allows the operator OP to decouple the power module 30 from the removal mechanism 40. If the operator OP wishes to recouple the power module 30 to the removal mechanism 40, he simply has to manipulate the manipulation rod 63B in the opposite direction.

[0129] A biasing element, such as a spring, may be mounted in the hollow cylinder 65 so as to bias the rod 63A towards the locking position 65-1.

[0130] The pivot connection 46D is here made in an identical manner to the pivot connection 44D. In [Fig. 6], the elements of the pivot connection 46D bear the same reference numerals as those of the pivot connection 44D, increased by 3, and are not described again for the sake of brevity. The pivot connections 43D and 45D, although not shown in [Fig. 6], are also made in an identical manner.

[0131] The pivot connections described in connection with [Fig. 6] are only examples. The pivot connections 43D, 44D, 45D, 46D can be made in a large number of other ways, as long as they allow the power module 30 to pivot relative to the arms 43, 44, 45, 46 as previously described.

[0132] The power module 30 can be made in various ways in order to provide electrical power to the machine 101.

[0133] In an exemplary embodiment shown in [Fig.7], the power module 30 is produced by electrically connecting battery elements 130. An electrical connector 140 is electrically connected to the battery elements 130 thus connected, and makes it possible to electrically connect the power module 30 to an electrical power input socket 600 that the machine 101 comprises.

[0134] Although [Fig. 7] shows two battery cells 130 connected in series, it is understood that any number of battery cells 130 may be connected together in series and / or in parallel to achieve a desired electrical voltage, electrical current and electrical storage capacity. The battery cells 130 may be of any suitable type, for example lead-acid or lithium-ion. Alternatively, a single battery cell 130 may be employed. Alternatively, all or some of the battery cells 130 may be replaced by supercapacitors.

[0135] In another exemplary embodiment shown in [Fig.8], the power module 30 takes the form of a generator set, and thus comprises an internal combustion engine 250 driving an electrical voltage generator 260. An electrical connector 240 is electrically connected to the electrical voltage generator 260, and makes it possible to electrically connect the power module 30 to the electrical power input socket 600 of the machine 101. The electrical voltage generator 260 may be of direct current or alternating current.

[0136] Preferably, the power module 30 further incorporates a fuel tank 270 connected to the internal combustion engine 250, for supplying fuel the internal combustion engine 250. Thus, it is not necessary to connect a fuel supply line to the power module 30 to operate the internal combustion engine 250.

[0137] In yet another embodiment shown in [Fig. 9], the power module 30 comprises a fuel cell 370. In a manner known per se, the fuel cell 370 is the site of an oxidation-reduction reaction which transforms hydrogen and oxygen from the air into electricity, water and heat. An electrical connector 340 is electrically connected to the fuel cell, and makes it possible to electrically connect the power module 30 to the electrical power input socket 600 of the machine 101.

[0138] Preferably, the power module 30 further incorporates at least one hydrogen tank 390 connected to the fuel cell 370, to supply the fuel cell 370 with hydrogen. Thus, it is not necessary to connect a hydrogen inlet line to the power module 30 to operate the fuel cell 370. The or each tank 370 is, for example, adapted to store hydrogen in the gaseous state at a maximum pressure of between 300 and 700 bars, for example of the order of 350 bars.

[0139] Advantageously, the power module 30 also comprises a compressor, not shown, making it possible to compress the combustion air at the inlet of the cells of the fuel cell 370 as well as a cooling device, also not shown, making it possible to cool the fuel cell 370.

[0140] The electrical connector 140, 240, 340 may incorporate a voltage converter and / or a voltage rectifier. Alternatively, this voltage converter and / or rectifier may be incorporated into the electrical power input socket 600 of the machine 101.

[0141] It is preferable that the power module 30 comprises a housing 39, the aforementioned elements of the power module 30 being arranged in an internal space of the housing 39.

[0142] The housing 39 thus allows the power module 30 to be moved in one piece.

[0143] In particular, the pivot connections 43D, 44D, 45D, 46D described above between the power module 30 and the arms 43, 44, 45, 46 may be formed in or on the housing 39. Preferably, these pivot connections 43D, 44D, 45D, 46D are formed at an upper end of the housing 39. It is understood that in this case, the risk of tipping of the power module 30 is limited, and the respective lengths of the arms 43, 44, 45, 46 and the crosspieces 23, 24 are also limited.

[0144] Furthermore, the fork passages 31 described above may be formed in or on the housing 39, or may be attached to the housing 39.

[0145] Purely by way of example, [Fig. 10] shows a transmission 81 ensuring power transmission between an electric propulsion motor 80 and the axles 3 and 4. An output shaft (not shown) of the electric motor 80 drives, via a reducer 82, two shafts 83 and 84. The shaft 84 drives an input shaft 4B for driving the rear wheels 4A mounted on the rear axle 4, and the shaft 83 drives an input shaft 3B for driving the front wheels 3A mounted on the front axle 3. It should be noted that the shafts 83 and 84 extend here substantially parallel to the longitudinal direction XX of the machine 101. It should also be noted that the output shaft (not shown) of the electric motor 80 extends to under a space provided between the side members 22, 23.

[0146] Alternatively, a large number of other configurations are possible for the transmission 81.

[0147] Returning to Figures 3 to 5, it can be seen that the machine 101 comprises a box 70, which is partially shown in these figures. The box 70 is arranged between the front axle 3 and the rear axle 4 in the longitudinal direction XX. Furthermore, the box 70 projects relative to the chassis 2 in the transverse direction YY.

[0148] The box 70 comprises a bottom plate 71 (see [Fig.5]), an external side plate 72 (see [Fig.3], [Fig.4] and [Fig.5]) and an internal side plate 73 (see [Fig.3] and [Fig.5]). The side plates 72 and 73 extend in the vertical direction ZZ, from opposite ends of the bottom plate 71 in the transverse direction YY.

[0149] In a manner not shown, the box 70 comprises a cover, the cover being located above the plates 71, 72 and 73 and being pivotally mounted so as to be able to close the box 70. The box 70 thus delimits an internal space in which various elements of the machine 101 can be arranged. The bottom plate 71 may or may not contribute to supporting the elements of the machine 101 arranged in the internal space of the box 70.

[0150] According to one example, the electric motor 80 described above with reference to [Fig. 10] is arranged in the internal space of the box 70. A cutout can then be provided in the internal side plate 73 to allow the output shaft of the electric motor 80 to pass. Furthermore, an electric speed variator electrically connected to the electric motor 80 can be arranged in the internal space of the box 70.

[0151] Alternatively, the propulsion of the chassis 2 may be provided by a hydraulic transmission chain. For example, a hydraulic motor is coupled to the front axle 3 and a hydraulic motor is coupled to the rear axle 4. A hydraulic pump generates a hydraulic flow driving the hydraulic motors. The hydraulic pump is driven by an electric motor, and the hydraulic pump and the electric motor are arranged in the internal space of the box 70. In addition, an electric speed variator electrically connected to the electric motor may be arranged in the internal space of the box 70.

[0152] Still other elements of the machine 101 may be arranged in the internal space of the box 70, such as a cooling fan, and / or one or more hydraulic pumps driven by one or more electric motors and providing hydraulic power for the actuation of the lifting arm 98 and / or the tool holder 99.

[0153] When the machine 101 comprises one or more hydraulic pumps as just described, the cylinders 53 and 54 are advantageously hydraulic cylinders. Indeed, in this case, the hydraulic power for actuating the cylinders 53 and 54 can be provided by the hydraulic pump(s), so that it is not necessary to equip the machine 101 with a non-hydraulic power source dedicated to actuating the cylinders 53 and 54.

[0154] As can be seen in [Fig. 3], the power module 30 in the initial position is located higher than the box 70 in the vertical direction ZZ. More particularly, the crosspieces 23 and 24 are located higher than the box 70 in the vertical direction ZZ. Thus, the presence of the box 70 does not interfere with the operation of the removal mechanism 40.

[0155] On the other hand, as can be seen in [Fig. 5], the power module 30 in the removal position rests on the ground surface S further from the chassis 2 than the box 70, more precisely from the external side plate 72, in the transverse direction YY. Thus, the presence of the box 70 does not interfere with the removal movement of the power module 30 or with the manipulation of the power module 30 in the removal position.

[0156] On the other hand, as can be seen in Figures 3 to 5, the arms 43 and 44 and the additional arms 45 and 46 are convex and have a convexity facing towards the chassis 2. Referring in particular to [Fig. 5], it is understood that in this way, it is easier to avoid the presence of the box 70 interfering with the arms 43 and 44 and the additional arms 45 and 46 when they finish bringing the power module 30 into the depositing position than if the arms 43, 44, 45, 46 were rectilinear.

[0157] Although the figures described so far show that the power module 30 and the removal mechanism 40 are located on the right side of the machine 101, it is of course also conceivable that the power module 30 and the removal mechanism 40 are located on the left side of the machine 101.

[0158] Up to now, embodiments have been described where the power module 30 is arranged between the front axle 3 and the rear axle 4 in the longitudinal direction XX. However, other arrangements of the power module 30 are conceivable. By way of example, [Fig. 11] schematically represents a machine 201 in which the power module 30 is in front of the front axle 3 in the longitudinal direction tudinal XX, here at a front end of the chassis 2. Still as an example, [Fig. 12] schematically represents a machine 301 in which the power module 30 is behind the rear axle 4 in the longitudinal direction XX, here at a rear end of the chassis 2.

[0159] In the embodiment illustrated in [Fig. 11] and in the embodiment illustrated in [Fig. 12], the movement for removing the power module 30 is identical to that described previously. The removal movement can in particular be implemented by the removal mechanism 40 described previously, the removal mechanism 40 being suitably positioned on the machine 201 or 301. The description of the removal movement and the removal mechanism 40 is not repeated for the sake of brevity. Only the position of the axis AA of the removal mechanism 40 has been shown for information purposes in [Fig. 11] and [Fig. 12].

[0160] It is further specified that a large number of other implementations of the machine are conceivable as long as they implement the movement of removing the power module 30 by means of the removing mechanism 40.

[0161] In particular, the construction of the frame 2 may be different from that shown in the figures, and / or the machine may have a tool mounted at a front end of the frame 2 rather than a tool or tool holder 99 at the end of a lifting arm 98.

[0162] Furthermore, the machine frame may be a two-part rotating frame, i.e. the frame comprises a lower structure and an upper structure rotatably mounted on the lower structure. As an example, [Fig. 13] schematically represents a machine 401 of this type. The frame 2 comprises a lower structure 2-1 and a steerable upper structure 2-2. The upper structure 2-2 is rotatably mounted on the lower structure 2-1 about an axis of rotation R, the axis of rotation R being vertical, i.e. parallel to the vertical direction ZZ. As shown schematically in [Fig. 13], the lifting arm 98 and the cabin 95 are mounted on the upper structure 2-2.

[0163] In the embodiment illustrated in [Fig. 13], the movement for removing the power module 30 is identical to that described previously. The removal movement can in particular be implemented by the removal mechanism 40 described previously, the removal mechanism 40 being suitably positioned on the lower structure 2-1 or on the upper structure 2-2. The description of the removal movement and of the removal mechanism 40 is not repeated for the sake of brevity. [Fig. 13] only shows for information purposes a possible position of the axis AA of the removal mechanism 40. Of course, if the removal mechanism 40 is positioned on the upper structure 2-2, the position of the removal mechanism 40 and consequently the position of the axis AA is modified during a rotation of the upper structure 2-2 around the axis of rotation R.

[0164] Finally, it is specified that in the depositing position, the power module 30 does not necessarily rest on the surface of the ground S. The depositing mechanism 40 can also be used to deposit the power module 30 on a platform located above the surface of the ground S in the vertical direction ZZ, such as the bed of a truck or other machine. It is even conceivable that the depositing mechanism 40 is configured to bring the power module 30 only to a depositing position located above the surface of the ground S in the vertical direction ZZ.

[0165] Although the invention has been described in connection with several particular embodiments, it is quite obvious that it is in no way limited thereto and that it includes all the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.

[0166] 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.

[0167] In the claims, any reference sign in parentheses cannot be interpreted as a limitation of the claim.

Claims

Claims

1. Handling machine (101; 201; 301; 401) comprising: - a chassis (2) movable relative to the ground surface (S); - a power module (30) for supplying electrical power to the handling machine (101; 201; 301; 401); and - a removal mechanism (40) connected to the chassis (2) and configured to move the power module (30) according to a removal movement, the removal movement bringing the power module (30) from an initial position, in which the power module is above the ground surface (S) in a vertical direction (ZZ) of the handling machine (101; 201; 301; 401), to a removal position, in which the removal movement comprises a circular translational movement, and the removal position is located lower than the initial position in the vertical direction (ZZ) of the handling machine (101; 201; 301; 401).

2. A handling machine (101; 201; 301; 401) according to claim 1, wherein the laying-down mechanism (40) is configured such that the laying-down movement can cause the power module (30) to rest on the ground surface (S).

3. A handling machine (101; 201; 301; 401) according to any one of claims 1 to 2, further comprising two crosspieces (23, 24) integral with the frame (2), the crosspieces (23, 24) being spaced apart and projecting from the frame (2), and wherein the depositing mechanism (40) comprises two first arms (43, 44), each of the first arms (43, 44) being pivotally mounted at a first end on one of the crosspieces (23, 24) so ​​as to be pivotable about a main axis (AA), and being pivotally mounted at a second end to the power module (30).

4. Handling machine (101; 201; 301; 401) according to claim 3, wherein the depositing mechanism (40) further comprises two cylinders (53, 54), each of the cylinders (53, 54) being articulated at one end to the frame (2) and at the other end to one of the first arms (43, 44) between the first end and the second end of said first arm.

5. A handling machine (101; 201; 301; 401) according to any one of claims 3 to 4, wherein the depositing mechanism (40) further comprises two second arms (45, 46), each of the second arms (45, 46) being pivotally mounted at a first end on one of the cross members (23, 24) so ​​as to be pivotable about a secondary axis parallel to the main axis (AA), and being pivotally mounted at a second end to the power module (30).

6. A handling machine (101; 201; 301; 401) according to claim 4 or claim 5 taken in combination with claim 4, further comprising a control device configured to control an extension of the two cylinders (53, 54).

7. A handling machine (101; 201; 301; 401) according to any one of claims 1 to 6, further comprising a front axle (3) and a rear axle (4) for propelling the chassis (2), the front axle (3) and the rear axle (4) being spaced apart in a longitudinal direction (XX) of the handling machine (101), the longitudinal direction (XX) being perpendicular to the vertical direction (ZZ), and wherein the power module (40) in the initial position is between the front axle (3) and the rear axle (4) in the longitudinal direction (XX) of the handling machine (101).

8. A handling machine (101; 201; 301; 401) according to any one of claims 1 to 7, wherein the handling machine (101) further comprises a box, the box (70) being arranged between the front axle (3) and the rear axle (4) in the longitudinal direction of the handling machine (101), and the box (70) projecting from the chassis (2) in a transverse direction (YY) of the handling machine (101), the transverse direction (YY) being perpendicular to the longitudinal direction (XX) and to the vertical direction (ZZ).

9. Handling machine (101; 201; 301; 401) according to claim 7 and claim 8 taken in combination, wherein the power module (30) in the initial position is located higher than the box (70) in the vertical direction (ZZ) of the handling machine (101).

10. A handling machine (101; 201; 301; 401) according to any one of claims 1 to 9, wherein the power module (30) comprises one of: - a battery element (130); - a supercapacitor; - a voltage generator (260) driven by an internal combustion engine (250); - a fuel cell (370).

11. A handling machine (101; 201; 301; 401) according to any one of claims 1 to 10, further comprising a lifting arm (98) mounted on the chassis (2) so as to be able to pivot around a horizontal axis (PP).

12. Handling machine (101; 201; 301; 401) according to claim 11, in which the chassis (2) comprises a lower structure (2-1) and an orientable upper structure (2-2) rotatably mounted on the lower structure (2-1) around a vertical axis (R), the lifting arm (98) being mounted on the orientable upper structure (2-2).

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