FR3013022A1 - IMPROVED TRANSPORT TROLLEY - Google Patents

Abstract

The transport carriage (1) comprises substantially vertical uprights (4a, 4b) mounted on a rolling frame (2) and horizontal arms (15a, 15b) movably mounted on these uprights in a substantially vertical direction. The arms extend forwardly of the carriage and support a container (16) removably. The carriage also comprises horizontal displacement means for horizontally moving the container (16) forward and rearward, and vertical displacement means for vertically moving the arms (15a, 15b) in a direction substantially for positioning them away from or near the rolling chassis (2). The horizontal and vertical movement of the container (16) allows to deposit it in the trunk of a vehicle.

Description

The present invention relates to an improved transport trolley, for example of the supermarket trolley type. This improved transport carriage includes a tray or a basket mounted removably, and means provided to allow moving said tray or basket in a vertical direction and in a horizontal direction. To transfer the contents of a supermarket trolley to the trunk of a car, it usually requires leaning forward and straightening several times while carrying heavy loads. Not only these manipulations are long and tedious, but in addition they are particularly painful for the back and can cause back pain, including severe low back pain in the weakest people or in case of particularly high loads.

Indeed, it is not uncommon for a pack of bottles of water or soda weighs more than 9 kg, which is a weight too heavy to handle when it comes to get out of a transport cart while leaning forward, with the sole strength of the back, without any possibility of bending the knees as recommended when lifting heavy loads.

At present, there is no supermarket trolley or similar transport trolley that can assist the user satisfactorily when loading and unloading the truck. There are supermarket trolleys among which there are carts whose frame can be raised, trolleys with a removable basket or tilting, or trolleys with a movable basket but by design, these devices are not satisfactory. Among the supermarket trolleys, the document FR 2836445 discloses a removable trolley for directly transferring charges contained in the trolley inside the trunk of a vehicle without having to handle these charges. This carriage includes means for moving a removable basket forward to position it above the trunk of a vehicle. The bottom of the basket comprises a crane elevator actuated by a worm driven by an electric motor forming a cylinder. This cylinder carries wheels and allows to lower them until they are in contact with the floor of the trunk of the vehicle and the basket can be removed from the removable truck. Although it partially meets certain needs, this demountable truck is however not satisfactory because of numerous defects.

Indeed, it does not move the removable basket height. The latter is always in the high position, which places the center of gravity of the truck in a high position resulting in low stability and a high risk of tilting for it.

In addition, the removable carriage of the document FR 2836445 uses a basket comprising a cross lift that presents a danger for users when it retracts. Indeed, the fingers of the user is likely to be stuck between the braces, and since they are driven by an electric motor, this jamming can be very serious.

The presence of the electric motor for the dismountable carriage of the document FR 2836445 requires additional wiring or connections, as well as a source of electrical energy, which implies additional manufacturing and maintenance costs. The connection of the electric motor by the user to the vehicle battery results in tedious handling and a risk of electrocution. Finally, the presence of an electric motor and a crank cylinder in the removable truck basket of the document FR 2836445 implies a significant additional weight for the basket and an increased risk of failure for the device.

The problem to which the invention proposes to provide a solution therefore consists in providing a new type of improved transport trolley which makes it possible, in particular, to effortlessly place goods in the trolley, to move the goods contained in the trolley without effort and in a safe manner. the cart from one location to another and easily, quickly and effortlessly unload these goods whatever their destination. Such a transport carriage must also meet the defects encountered with the devices of the prior art. To solve the technical problems mentioned, the solution of the invention is to provide an improved transport carriage with a tray or a basket removably mounted on the frame of the carriage, and means for moving said removable tray or basket according to a vertical direction for its positioning in height and in a substantially horizontal direction, especially for its removal in a chest. The objects assigned to the invention are achieved by means of a transport carriage comprising the following elements: a wheeled chassis carried by wheels; substantially vertical uprights mounted on the rolling frame at the rear of the latter, these uprights comprising a lower portion fixed to the rolling frame, surmounted by a first intermediate portion and then by a second intermediate portion and finally by an upper portion; - A maneuver member fixed in the upper part of the uprights and by means of which the user moves and manually directs the transport carriage; substantially horizontal arms mounted at the same height on the uprights and extending towards the front of the transport trolley; - a container removably supported by the arms; - Horizontal displacement means for moving the container bearing on the arms, forwards and backwards in a substantially horizontal direction respectively for its positioning away or closer to the amounts; characterized in that it comprises vertical displacement means for simultaneously moving the arms in a substantially vertical direction for their positioning away or closer to the rolling frame, the arms being movably mounted on the uprights in a substantially vertical direction. According to an exemplary embodiment of the transport carriage according to the invention, said vertical and horizontal displacement means are mechanical means that are autonomous in energy. According to an exemplary embodiment of the transport carriage according to the invention, the arms are mounted at their rear end on the same upper cross member. According to an exemplary embodiment of the transport trolley according to the invention, the vertical displacement means comprise a gas spring, a mechanical ratcheting system, screw nut or gear chain, or a hydraulic cylinder actuated by a manual pump or on foot. According to an exemplary embodiment of the transport carriage according to the invention, it comprises a lever for actuating the gas spring to trigger the upward movements of the gas spring in high abutment and the downward movements of the gas spring when the container is loaded. According to an exemplary embodiment of the transport carriage according to the invention, the lever for actuating the vertical displacement means is mounted on the upper rail.

According to an exemplary embodiment of the transport carriage according to the invention, the horizontal displacement means comprise means of horizontal sliding of the container on the arms, which extend substantially horizontally. According to an exemplary embodiment of the transport carriage according to the invention, each of the uprights is in the form of at least two substantially parallel rods.

According to an exemplary embodiment of the transport carriage according to the invention, the vertical displacement of each arm is guided by a pair of grooved rollers, each pair of grooved rollers being mounted to slide or roll between the substantially parallel rods of an amount. According to an exemplary embodiment of the transport carriage according to the invention, each pair of rollers is rotatably mounted on a support extending vertically in a vertical plane parallel to that of pairs of substantially parallel rods and in that each of the supports is secured. at the top rail. According to an exemplary embodiment of the transport carriage according to the invention, characterized in that the uprights are inclined forwards in the first intermediate portion, determining a low positioning of the container, at an angle between 0 and 30 degrees relative to vertically. According to an exemplary embodiment of the transport carriage according to the invention, characterized in that the amounts are inclined backwards in the second intermediate portion, determining a high positioning of the container, at an angle between 0 and 20 degrees relative to vertically. According to an exemplary embodiment of the transport carriage according to the invention, the arms are telescopic. According to an exemplary embodiment of the transport carriage according to the invention, in the upper part, the uprights each comprise a safety hook provided to ensure the automatic immobilization of the container when it is raised in high abutment. According to an exemplary embodiment of the transport carriage according to the invention, the container has an upper opening lined at least laterally by a flange provided to rest and slide forwards and / or backwards on the arms. Note that the transport carriage of the invention, although it is especially intended to assist the unloading of the goods it contains in a car trunk, may also be provided to assist the unloading of goods on treadmills of cars. supermarket checkouts or any other place. By its flexibility of use, it can also be used in other areas that only limited to the loading and unloading of goods in a car trunk. Indeed, the improved transport trolley of the invention can also be used in either for transporting goods, being used in the field of home deliveries, for the transport of luggage in railway stations and airports, for the transport of mail and parcels by the Post Office, and more generally in the field of transport of light and light goods. When these goods are very bulky, the transport trolley of the invention allows to lower the tray or basket to a low level allowing both to lower the center of gravity of the assembly formed by the carriage and its contents and to clear the line of sight above the cart. In general, the transport trolley of the invention is designed to be stable and offer all the safety of use that can be expected from such a trolley.

When the goods must be unloaded in the trunk of a car, and regardless of the plumb of the trunk rim and the depth thereof, the transport trolley of the invention can bring the tray or basket of transport carriage at a height sufficient to then move horizontally above the rim of said car trunk and finally lower it to drop the tray or basket inside the car trunk. It is suitable for any type of vehicle. No additional system for lowering the container is necessary. The tray or basket of the transport carriage of the invention being removable, it advantageously allows to leave it inside the trunk of the car. The bin or basket can be unloaded easily, directly and quickly without any tedious or physically arduous handling. The use of the transport carriage of the invention does not imply tilting the contents of the carriage, which would destabilize the latter and could cause the reversal or fall of the goods.

With simple mechanical means, reliable and inexpensive, and requiring no motor or external or onboard power supply, the transport carriage of the invention has many advantages, among which we can mention: - no risk of failure; - no electrical risk for the user and his environment; a weight and an overall size substantially similar to those of a conventional trolley; a comparable cost higher than that of a conventional trolley insofar as the basket or basket basket can belong to the customer of the store and its value to be deducted from the set; - no wiring, connectors or battery are necessary, which are as many sources of additional costs of manufacture and maintenance; - No connection to any power network is necessary, which would be impractical and involve additional manipulations. It will be noted that the vertical and horizontal displacement means of the invention are mechanical means that are autonomous in energy, that is to say that they do not require any source of external electrical or other energy for their operation, which is particularly advantageous. Its manufacture does not involve a significantly higher cost than conventional supermarket trolleys, the improved transport trolley of the invention can thus present a commercial asset for the supermarkets that use it, because it allows customer loyalty to this type of store that offers them the opportunity to free themselves from the chore of unloading. Other features and advantages of the invention will appear on reading the detailed description which follows, description made with reference to the accompanying drawings, in which: Figure 1 is an overall perspective view of the improved transport carriage of the invention; - Figure 2 is a right side view of the improved transport carriage of the invention wherein the non-visible elements are shown in broken lines; FIG. 3 is a view from above of the improved transport trolley of the invention in which the non-visible elements are represented in broken lines; FIG. 4 is a rear view of the improved transport trolley of the invention in which the non-visible elements are represented in broken lines; FIG. 5 is an exploded view of the improved transport trolley of the invention; and FIGS. 6 to 10, of which schematic side views illustrating the use of an improved transport trolley of the invention for the removal of a basket in the trunk of a car.

The improved transport trolley according to the present invention will now be described in detail with reference to Figs. 1-10. The concepts of right, left, forward, backward, up and down for the trolley are given according to conventional use. of it, when the user moves the transport carriage of the invention forward by pushing it by a handle provided at the rear thereof. The improved transport trolley 1 according to the present invention is preferably made of metal, as is usually done for this type of trolley. Some parts may also be made of plastic or any other suitable material. This improved transport carriage 1 comprises a rolling frame 2 carried by wheels 3a, 3b, 3c, 3d.

Amounts 4a and 4b are mounted on the rolling frame 2. These uprights 4a and 4b are substantially vertical, although they preferably have a very stretched S shape when viewed from the left side and an inverted S shape very stretched when seen from the right side. Each of the amounts 4a and 4b preferably comprises four successive parts. Thus, each of the uprights 4a and 4b has a lower portion 5a, 5b, preferably flared, which is fixed on the rolling frame 2. This lower portion 5a, 51) is surmounted by a first intermediate portion 6a, 6b inclined forwards at an angle for example between 1 and 30 degrees from the vertical and preferably about 10 degrees. This first intermediate portion 6a, 6b inclined forward is itself surmounted by a second intermediate portion 7a, 7b inclined rearwardly at an angle, for example between 1 and 20 degrees and preferably about 5 degrees. The transition between the first intermediate portion 6a, 6b and the second intermediate portion 7a, 7b is preferably curved. Finally, in the upper part, each of the uprights 4a and 4b, has an upper portion 8a, 8b inclined rearwardly at an angle, for example between 20 and 90 degrees from the vertical and preferably about 50 degrees. The uprights 4a and 4b are preferably interconnected at the bottom by a lower cross member 9 and in the upper part by an operating member 10 for pushing, sorting and directing the transport carriage 1. This operating member 10 is preferentially under the shape of a horizontal bar or a handle. Each of the uprights 4a and 4b is preferably in the form of at least two substantially parallel rods 11a, 11b and 11c, 11d, forming between them a guide ramp in the two intermediate parts 6a, 6b and 7a, 7b. These pairs of substantially parallel rods 11a, 11b and 11c, 11d are each provided in a substantially vertical plane parallel to the longitudinal axis of the transport carriage 1. The substantially parallel rods 11a, 11b and 11c, 11d are preferably solid round type steel rods with a diameter of between 10 and 20 millimeters, preferably 14 millimeters.

The guide ramps in the two intermediate parts 6a, 6b and 7a, 7b are provided to each receive a pair of grooved rollers 12a, 12b and 12c, 12d substantially vertical so that the grooved rollers 12a, 12b and 12c, 12d can slide or roll freely inside the uprights 4a and 4b while being held laterally by the pairs of substantially parallel rods 11a, 1b and 11c, 11d. The grooves of the grooved rollers 12a, 12b and 12c, 12d being respectively engaged with the substantially parallel rods 11a, 11b and 11c, 11d, the grooved rollers 12a, 12b and 12c, 12d can not exit the posts 4a and 4b, but can slide or roll freely over the entire length thereof.

Of course, in case of angle of inclination of the uprights 4a and 4b particularly sharp, according to the distance between each groove wheel 12a, 12b and 12c, 12d within the same pair, the pairs of grooved rollers 12a, 12b and 12c, 12d can become stuck in their vertical movement. Similarly, the uprights 4a and 4b may comprise high or low stop means for limiting the amplitude of the vertical displacement of the grooved rollers 12a, 12b and 12c, 12d in the pairs of substantially parallel rods 11a, 11b and 11c, 11d . Each pair of rollers 12a, 12b and 12c, 12d is rotatably mounted on a support 13a, 13b extending vertically in a vertical plane parallel to that of the substantially parallel pairs of rods 11a, 11b and 11c, 11d. Each of the supports 13a and 13b is secured to one and the same upper cross member 14 so that the gap provided between the supports 13a and 13b is slightly smaller than that provided between the uprights 4a and 4b. The upper cross member 14 preferably has a width slightly greater than that of the actuating member 10 when it is in the form of a horizontal bar. At each lateral end, the upper cross member 14 has an arm 15a and 15b perpendicular which extends forward. These two arms 15a and 15b are provided to carry a container 16, for example a tray or a basket removably and are therefore provided substantially horizontal and at the same height. It will be noted that when the grooved rollers 12a, 12b, 12c, 12d roll or slide in the substantially parallel rods 11a, 1b, 11c, 11d of the uprights 4a and 4b, each pair of rollers 12a, 12b and 12c, 12d is moves vertically along the uprights 4a and 4b, while following the general orientation of the latter Thus, when the rollers 12a, 12b, 12c, 12d move vertically along a portion of the uprights 4a and 4b which is inclined forward or backward, their supports 13a, 13b are also inclined respectively forwards or backwards, which respectively causes the inclination downward or upward of the arms 15a and 15b and of the container 16.

The container 16 is for example in the form of a parallelepiped body 17 open at the top and having a rim 18 provided at least laterally projecting outwardly around the periphery of said upper opening 19. This flange 18 lateral or peripheral may be in the form of a flange, and is intended to rest on the arms 15a and 15b.

In this case, the two arms 15a and 15b are preferably provided to carry the container 16 removably bearing against the flange 18 thereof. The spacing provided between the arms 15a and 15b is then preferably slightly greater than the width of the body 17 of the container 16 but less than the width of the flange 18 thereof.

According to a preferred embodiment of the invention, to facilitate the positioning of the container 16 on the arms 15a and 15b when it is drawn longitudinally thereon, the upper part of the free end of the arms 15a and 15b is inclined downwardly to form a sliding ramp 20a, 20b.

According to a further embodiment of the invention, to facilitate the longitudinal movement of the container 16 along the arms 15a and 15b, the latter each comprise a roller 21a, 21b rotatably mounted and slightly projecting upwards relative to the top face of the arms 15a and 15b, preferably at the start each slip ramp 20a, 20b.

These arms 15a and 15b constitute a horizontal displacement means for moving the container 16 forward and backwardly sliding along the arms in a substantially horizontal direction for its positioning away or closer to the uprights 4a and 4b . The container 16 may be made of metal, plastic or any other material usually used for this type of container. The improved transport carriage 1 of the invention also comprises a substantially vertical gas spring 22.

According to a preferred embodiment of the invention, this gas spring 22 is preferably fixed in the lower part to the lower cross member 9 and in the upper part to the upper cross member 14 so as to move the arms 15a and 15b vertically by pulling or pushing substantially vertically on the upper cross member 14 when actuated. The gas spring 22 is preferably actuated by a lever 23 pivotally mounted on the upper cross member 14. Operating in the manner of the gas springs for adjusting the height of office chairs, the gas spring 22 contracts or stretches in length, allowing in our case to push or pull the upper cross 14. The vertical movement of the latter being guided on each side by a pair of grooved rollers 12a, 12b and 12c, 12d which slide freely inside the amounts 4a and 4b, the actuation of the gas spring 22 makes it possible to vertically move the upper cross member 14, as well as the arms 15a and 15b that it carries, in a path imposed by the at least two substantially parallel rods 11a, 11b and 11c 11d forming between them a guide ramp in the two intermediate parts 6a, 6b and 7a, 7b of the uprights 4a and 4b. Since the arms 15a and 15b are provided to carry the container 16, the gas spring 22 is therefore a vertical displacement means for simultaneously moving the container 16 in a substantially vertical direction for its positioning away from or approaching the rolling frame 2. The gas spring 22 is calibrated so as to move the container 16 upward when empty and to move it downward when loaded with weight. Thus, when the container 16 is empty or lightly loaded by weight, the user can use the lever 23 to actuate the gas spring 22 which then extends in length, exerting a thrust force on its lower bearing point, by example on the lower cross member 9, and on its upper support point, for example on the upper cross member 14. This upper cross member 14 being mounted vertically movable, it is then moved upwards, with the container 16 carried on its arms 15a and 15b, until the gas spring 22 reaches its maximum length or until the upper cross member 14 reaches a high stop.

When the container 16 is loaded by weight, the user can use the lever 23 to actuate the gas spring 22 which then contracts in length under the effect of the weight of the container 16. The upper cross member 14 and the container 16 are then together moved downward, until the gas spring 22 reaches its minimum length or until the upper cross member 14 reaches low abutment. According to a variant of the invention, for example, the gas spring 22 can be replaced by a mechanical ratchet, screw-lock, geared-down or hydraulic jacking system actuated by a hand pump or on foot. The gas spring 22 is nevertheless preferred as a means of vertical displacement because of its reliability, cost, autonomous energy operation and ease of use. Since the first intermediate portion 6a, 6b of the uprights 4a and 4b is inclined forwards, when the spring moves the container 16 downward, it is found slightly inclined forwardly. Since the container 16 is slidably mounted on the arms 15a and 15b, when in the down position, it naturally tends to slide forward to move away from said arms 15a and 15b, which facilitates its removal like this. will be seen further. Similarly, since the second intermediate portion 7a, 7b of the uprights 4a and 4b is slightly inclined rearward, when the spring moves the container 16 upwards, it is found slightly inclined rearwardly and is retained in rear stop by the amounts 4a and 4b. When in the high position, the container 16 is in the normal position of use, namely the position in which it is used, for example in the store, to be loaded with goods. According to a preferred embodiment of the invention, in order to ensure that the container 16 does not accidentally slide forward and fall, a hook 24a, 24b is provided forwards on each of the uprights 4a and 4b so as to receive at a standstill the rear rim 18 of the container 16 when it is moved upwards. These hooks 24a, 24b also serve as high stops to automatically limit the upward movement of the container 16.

The bottom stop can be provided by the gas spring 22 itself, by its minimum length in fully contracted position. Finally, according to a further embodiment of the invention, the first and second intermediate portions 6a, 6b and 7a, 7b of the uprights 4a and 4b are covered by a protective shroud 25a, 25b mounted on the outer lateral faces of the uprights 4a. and 4b. These protective covers 25a, 25b protect the throat casters 12a, 12b and 12c, 12d and prevent access to avoid any risk of accident with the user of the improved transport trolley 1 or with people around. We will now focus on the operation of the improved transport cart 1 of the invention. Firstly, the improved transport trolley 1 is used, for example in the store, to be loaded with goods. If the container 16 is not already in place on the arms 15a and 15b, it is easy to put it in place. If they do not carry a container 16, the arms 15a and 15b are theoretically in the lower position and therefore inclined forwardly. If this is not the case, the user must actuate the gas spring 22 by means of the lever 23 and press the arms 15a and 15b or the top rail 14 to lower them. The container 16 can be directly positioned on the arms 15a and 15b or be pulled back on them by sliding it on the sliding ramps 20a and 20b to roll the underside of its flange 18 on the rollers 21a and 21b of the arms 15a and 15b. Once the container 16 is placed on the arms 15a and 15b, it suffices to actuate the gas spring 22 by means of the lever 23 in order to raise it until the rim 18 of the container 16 comes into abutment against the hooks 24a and 24b and that the container 16 is immobilized by them.

The user can then load the container 16 with goods as with a conventional transport cart. The removal of the container 16 in the trunk 26 of a vehicle 27 is illustrated in FIGS. 6 to 10. Once it wishes to unload it, for example by depositing the container 16 in the trunk 26 of a vehicle 27, The user must first open the trunk 26 of his vehicle 27, approach the improved transport trolley 1 as close as possible to the vehicle 27 (see Figure 6) so as to make the container 16 enter the trunk 26 of the vehicle 27 (see Figure 7). The frame 2 of the improved transport carriage 1 then passes under the vehicle 27, between the rear wheels 28 thereof. The user then actuates the gas spring 22 by means of the lever 23 in order to lower it (FIG. 8) until the container 16 is in the lower position and inclined forwards in the trunk 26 of the vehicle . Depending on the dimensions of the trunk 26, the container 16 may be in contact with the bottom 29 of the trunk 26. The container 16 is then inclined forwards in the trunk 26, just push it forward, in the sliding on the arms 15a and 15b, to release it from them and to deposit it entirely in the trunk 26 of the vehicle 27 (Figure 9). The container 16 being disengaged from the improved transport trolley 1, the user only has to move the latter and close the trunk 26 of the vehicle 27. The invention also allows to load a container 16 on the improved transport trolley 1 of the invention from the trunk 26 of the vehicle 27. This operation is performed by performing the previously described steps in the reverse order.

According to a variant of the invention, in order to facilitate these different operations, the container 16 may comprise rollers at the intersection of its bottom and its front face (not shown) to roll it on the bottom 29 of the trunk 26 of the vehicle 27. In the case of particularly long or recessed chests, according to a further variant of the invention, the arms 15a and 15b can be telescopic, which makes it possible to lengthen them in an additional way, in particular in order to accompany the container. 16 in its forward translation movement when it is deposited in the trunk 26 of a vehicle 27. Obviously, the invention is not limited to the preferential embodiment described above and represented in the various figures. one skilled in the art can make many modifications and imagine other variants without departing from the scope or scope of the invention.

Claims (15)

REVENDICATIONS1. Transport trolley (1) comprising the following elements: - a rolling frame (2) carried by wheels (3a, 3b, 3c, 3d); - uprights (4a, 4b) substantially vertical mounted on the rolling frame (2) at the rear of the latter, these uprights (4a, 4b) comprising a lower portion (5a, 5b) fixed to the rolling frame (2) , surmounted by a first intermediate portion (6a, 6b) then by a second intermediate portion (7a, 7b) and finally by an upper portion (8a, 8b); - an operating member (10) fixed in the upper part (8a, 8b) of the uprights (4a, 4b) and by means of which the user moves and manually directs the transport carriage (1); substantially horizontal arms (15a, 15b) mounted at the same height on the uprights (4a, 4b) and extending towards the front of the transport carriage (1); - a container (16) removably supported by the arms (15a, 15b); - Horizontal displacement means for moving the container (16) resting on the arms (15a, 15b), forwards and backwards in a substantially horizontal direction respectively for its positioning away or closer to the amounts (4a, 4b); characterized in that it comprises vertical displacement means for simultaneously moving the arms (15a, 15b) in a substantially vertical direction for their positioning away from or near the rolling frame (2), the arms (15a, 15b). being movably mounted on the uprights (4a, 4b) in a substantially vertical direction. 2. transport trolley (1) according to claim 1, characterized in that said means of vertical and horizontal displacement are mechanical means autonomous in energy. 3. Transport trolley (1) according to claim 1 or 2, characterized in that the arms (15a, 15b) are mounted at their rear end on a single upper cross member (14). 4. transport trolley (1) according to any one of claims 1 to 3, characterized in that the vertical displacement means comprise a gas spring (22), a mechanical ratchet lifting system, screw nut or to geared chain, or a hydraulic cylinder actuated by a hand pump or foot. 5. transport trolley (1) according to the preceding claim, characterized in that it comprises a handle (23) for actuating the gas spring (22) to trigger the upward movements of the gas spring (22) in high abutment and downward movements of the gas spring (22) when the container (16) is loaded. 6. transport trolley (1) according to claims 3 and 5, characterized in that the lever (23) for actuating the vertical displacement means, is mounted on the upper cross member (14). 7. Transport trolley (1) according to any one of the preceding claims, characterized in that the horizontal displacement means comprise horizontal sliding means of the container (16) on the arms (15a, 15b), which extend substantially horizontally. 8. Transport trolley (1) according to any one of the preceding claims, characterized in that each of the uprights (4a and 4b) is in the form of at least two substantially parallel rods (11a, 11b and 11c, 11d). 9. transport trolley (1) according to the preceding claim, characterized in that the vertical displacement of each arm (15a, 15b) is guided by a pair of grooved rollers (12a, 12b and 12c, 12d), each pair of grooved rollers (12a, 12b and 12c, 12d) being slidably or rollingly mounted between the substantially parallel rods (11a, 11b and 11c, 11d) of a post (4a, 4b). 10. Transport trolley (1) according to claims 3 and 9, characterized in that each pair of wheels (12a, 12b and 12c, 12d) is rotatably mounted on a support (13a, 13b) extending vertically in a plane vertical parallel to that of pairs of substantially parallel rods (11a, 11b and 11c, 11d) and in that each of the supports (13a, 13b) is secured to the upper cross member (14). 11. transport trolley (1) according to any one of the preceding claims, characterized in that the uprights (4a, 4b) are inclined forwards in the first intermediate portion (6a, 6b), determining a low positioning of the container (16) at an angle between 0 and 30 degrees from the vertical. 12. Transport trolley (1) according to any one of the preceding claims, characterized in that the uprights (4a, 4b) are inclined rearward in the second intermediate portion (7a, 7b), determining a high positioning of the container (16) at an angle of between 0 and 20 degrees from the vertical. Transport trolley (1) according to any one of the preceding claims, characterized in that the arms (15a, 15b) are telescopic. 14. transport trolley (1) according to any one of the preceding claims, characterized in that in the upper part, the uprights (4a, 4b) each comprise a safety hook (24a, 24b) provided to ensure the immobilization automatic container (16) when raised in high abutment. 15. Transport trolley (1) according to any one of the preceding claims, characterized in that the container (16) has an upper opening (19) bordered at least laterally by a flange (18) provided to rest and slide towards the l front and / or rearward on the arms (15a, 15b).