FR2731998A1 - METHOD AND DEVICE FOR ENHANCING A PORTABLE CONTAINER TYPE PORT - Google Patents

Abstract

The invention relates to a method for raising a port vehicle comprising four legs, two adjacent legs being connected to each other, on the one hand by a spar and on the other hand by a cross member, in which a ) support means are fixed to the side member, connected to a lifting unit; b) two adjacent feet are connected by rigid connecting means; c) each foot is cut between the spar and the rigid connecting means; d) the lower part of the lifting unit is secured to the support means; e) separating the upper part of the lifting unit from the support means; f) the upper part of the lifting unit is lifted; g) the upper part of the lifting unit is secured to the support means; h) the lower part of the lifting unit is disconnected from the support means; i) the lower part of the lifting unit is lifted from each leg; j) repeating the operating phases d) to i); and k) the upper part is secured to the lower part of the vehicle.

Description

Method and device for raising

  a port gantry type container.

  The invention relates to a method of raising a port gantry type container craft, an enhancement device for the implementation of the method, and the port machine comprising such a device. The invention relates more particularly to a method and an enhancement device that make it possible to modify the size of the port machine for loading and unloading particularly large volume loads such as, for example, loads of the type

  containers on vessels over 30m wide.

  For such loads, it is necessary to change the structure of the original port machine

especially in its height.

  Elevating devices are known that make it possible to lift an upper part of a port gantry-type container craft comprising this upper part and a lower part distinct from the upper part, which apparatus having an outer envelope of parallelepipedal general shape and comprising four feet. the lifting device comprising: - a plurality of independent support means intended to be associated with each foot of the machine and to support the upper part; guiding means mounted on the support means and intended to guide the upper part vertically

of the machine.

  However, in these known devices, the support means are placed on the platform outside the outer casing of the machine, and therefore occupy an important additional space given the loads to be lifted, this place not being always easy to get. On the other hand, these raising devices do not provide to replace the entire port machine in case it is necessary to stop the lifting procedure, especially in bad weather conditions. Although they allow a quick lifting of the upper part of the machine, they do not guarantee

  not, in return, absolute security on the wharf.

  According to document FR-A-2 679 214, systems designed to lift heavy loads are also known. The system described in this document comprises an elevator system consisting of two upper and lower bases, guide means provided on the bases for guiding the lifting system vertically on a support structure, a jack placed between the two bases, and two hooves mounted in rotation about a vertical axis respectively on the upper base and on the lower base. However, this system can not be used in the context of the evolution of the structure of a gantry of origin in that it is fixed structure and not removable structure. In addition, once mounted, it can only be used in the frame in which it was mounted, and it can not be reused in another case. Finally, the very structure of this device is only for use in

the case of harbor craft.

  WO 90/09949 discloses another mechanical device for moving heavy objects. This device comprises a frame formed of two uprights and crosspieces. Two vertical bars with adjustable spacing are connected to the chassis cross members, and supports that can be positioned along the vertical bars adjust to the object to be moved. A cylinder mounted on a chassis ensures the raising or lowering of the chassis

  and simultaneously of the object to be moved.

  This device therefore provides for moving the object through the movement of the frame, and not independently of the latter. It can not therefore be used for the purpose of modifying the structure of the chassis itself, and therefore for the purpose of being reused later. In addition, again, the structure of the device described is absolutely not suitable for harbor gear. The invention aims to overcome the aforementioned drawbacks and to use the known structures so as to adapt them to the case of harbor craft. It relates to an enhancement process for modifying the original structure of a port machine so that it can perform the loading and

  the unloading of particularly bulky loads.

  The invention also relates to an enhancement device allowing on the one hand to perform the lifting operation safely, and on the other hand, to be able to interrupt this lifting operation during the process without taking the risk of see the harbor craft, momentarily split into two parts, crashing. Finally, the subject of the invention is an enhancement device which can be installed on any type of port machine provided that it has a four-legged, parallelepipedal external envelope, which is compact, and of particular manufacture and installation. simple. For this purpose, the invention proposes a method for raising a gantry-type port craft with containers adapted to move in a given direction, for example along a quay, the harbor craft having an external frame of parallelepipedal shape and having four substantially vertical feet, two adjacent feet being connected to each other, on the one hand parallel to the direction determined by a spar at the lower ends of said feet and, on the other hand perpendicular to the direction determined by a

  crossbar located above the rails.

  This raising process is characterized by the following operating phases: a) for each foot, the corresponding spar is fixed with support means intended to support a part of the machine and extending parallel to said foot, and to which a unit is connected. lifting means having a lifting upper part and a lower lifting part, mounted movable relative to each other; b) two adjacent feet are further connected parallel to the direction determined by rigid connecting means placed above the spar so that these rigid connecting means rest on the upper lifting part, c) is cut each foot between the spar and the rigid connecting means to separate the port craft into two parts, a lower part and an upper part, d) the lower lifting part is secured to the support means, e) the upper lifting part is detached from the support means, f) the lifting upper part of each foot so as to cause the vertical displacement of the upper part of the machine, g) the lifting upper part is secured to the support means, h) the lower lifting part is separated from the support means, i) raising the lower lifting part of each foot so as to cause the vertical displacement of the lower lifting part relative to the upper lifting part, j) repeating the operating phases d) to i ) to obtain the desired enhancement, and k) is secured, for example with an additional piece of foot, the upper part with the lower part of the machine so as to use the port machine

as enhanced.

  Thus, the support means fixed to the longitudinal members

  do not use additional space on the dock.

  The invention further relates to an enhancement device for implementing the method characterized in that the raising device comprises: - for each foot, support means attached to the corresponding spar, intended to support the upper part of the machine, extending parallel to said foot, and to which is connected a lifting unit having a lifting upper part and a lower lifting part mounted movable relative to each other by means of a cylinder device and being fixed to the support means by means of movable securing means, and rigid connecting means placed above the spar and connecting two adjacent feet parallel to the determined direction, so that these rigid connection means 'support on the upper lifting part. Advantageously, in order to be able to position the raising device inside the outer frame of the machine, the distance between two adjacent support means is substantially less than the distance between the two adjacent feet of the machine which

correspond to them.

  In addition, it can be provided that the support means comprise two support elements per foot, which makes it possible to obtain an isostatic connection between the lifting unit and the support elements, and not hyperstatic, as is the case. for support systems comprising four support elements, and thus

  control the efforts on the machine.

  Finally, to ensure the strength of the entire raising device-port device, the support means are fixed to the spar, firstly at a point at the low end of the support means and, d ' on the other hand at a point substantially at the end

high support means.

  The invention also relates to a port gantry type container craft comprising such a device

of enhancement.

  Other features and benefits of

  the invention will result from the description which will follow in

  Referring to the accompanying drawings in which: - Figure 1 is a schematic front view of a port machine comprising an enhancement device according to the invention; - Figure 2 is a schematic representation in section along the line II-II of Figure 1 of a method of fixing the support means to the raising device according to the invention; - Figure 3 is a sectional view along line III of Figure 1 of the support means of the raising device according to the invention; - Figure 4 is a detailed sectional view of an embodiment of the movable securing means; - Figure 5 is a side view of a support member of the support means; and FIG. 6 represents, by FIGS. 6a, 6b, 6c and 6d, the different successive steps for

perform the lifting of the machine.

  The invention therefore relates to a method of raising a port machine and the setting device

implementation of the method.

  In the embodiment described, the harbor craft is a container crane 1 intended to move in a direction D which is, here, along

from a dock.

  The gantry i has an external frame of parallelepipedal shape with four substantially vertical feet 2. Two adjacent feet are connected to each other, on the one hand parallel to the direction D by a spar 3 at the lower ends 2a of said feet 2 and, on the other hand, perpendicular to the direction D by a cross member ( not shown) located above the

beams.

  It is of course possible to apply the method and use the raising device to / for any type

  harbor craft having a similar structure.

  For the whole description, we define

  horizontal which is parallel to the plane defined by the wharf, by vertical which is perpendicular to this plane and it is considered that an upper element is above the lower element which corresponds to it with respect to the vertical. On the other hand, all the elements used for the realization of the port machine and the raising device according to the invention are preferably in one embodiment.

metallic material.

  The raising method according to the invention consists in carrying out the following operating phases: a) for each foot, the corresponding spar 3 is fixed with support means 4 intended to support a part of the machine and extending parallel to said foot 2 , and to which is connected a lifting unit 5 having a lifting upper part 5a and a lower lifting part 5b, mounted movable relative to each other, b) is connected, in addition, two adjacent feet parallel to the direction D by rigid connecting means 6 placed above the spar 3 so that these rigid connecting means 6 rest on the upper lifting part 5a, c) cutting each foot 2 between the spar 3 and the Rigid connecting means 6 for separating the harbor craft in two parts, an upper part 1a and a lower part 1b, d) the lower lifting part 5b is secured with the support means 4, e) the upper part is separated from the l with the support means 4, f) raising the upper lifting part 5a of each foot 2 so as to cause the vertical displacement of the upper part of the machine, g) the upper part of 5a with the support means 4, h) the lower lifting part b is detached from the support means 4, i) the lower lifting part 5b of each leg 2 is lifted so as to cause the vertical displacement of the lower lifting part 5b with respect to the upper lifting part 5a, j) the operating phases d) to i) are repeated until the desired raising is obtained, and k) is secured, for example with an additional piece of foot , the upper part with the lower part lb of the machine so as to be able to use the machine

port as enhanced.

  1i n To implement such a method, the raising device according to the invention comprises: - for each foot 2, the support means 4 fixed to the corresponding spar 3, intended to support the upper part of the machine, s extending parallel to said foot 2, and to which is connected the lifting unit 5 comprising the lifting upper part 5a and the lower lifting part 5b movably mounted relative to each other by means of a device forming cylinder 7 and being fixed to the support means 4 by means of movable securing means 8, and the rigid connecting means 6 placed above the spar 3 and connecting two adjacent feet parallel to the direction D, so that that these rigid connecting means 6 rest on the upper part

lifting 5a.

  According to FIG. 1, in order not to encumber the platform, the raising device is placed inside the external framework of the port machine, the distance between two adjacent support means 4 being substantially less than the distance between the two adjacent feet 2 of the machine that correspond to it. However, it is also possible to fix it to the logeron 3, but outside the outer frame. Indeed, since

  it is attached to the spar 3, it does not clutter the dock.

  There is now described a support means of the raising device, the other support means

having the same structure.

  To obtain a good isostatic connection between the upper and lower lifting parts 5a and 5b and the support means 4, it is preferable that each of the support means 4 comprise two support elements 4a facing each other and extending vertically in

  being offset with respect to the corresponding foot.

  However, the support means 4 can also be

  consisting of a single support member 4a.

  Preferably, the support elements 4a are fixed to the spar 3 corresponding, on the one hand at a point at the low end of the support members, and secondly, at a point substantially at the high end. The connection between the spar 3 and the upper end of each foot is carried out, for example, by means of a connecting bar (not shown) which is fixed to the spar at a point substantially

in the center of the latter.

  On the other hand, in the example shown (FIG. 4), the support elements 4a have a shape substantially of H, the tilting bar 4c being substantially parallel to the cross member which connects two adjacent legs 2, but provision can be made for other forms, ie, for example,

  parallelepipedic or cylindrical.

  Furthermore, as shown, each support element 4a is also a means of

  guidance for the upper part of the machine.

  However, it is possible to interpose between the support elements 4a and the upper part the means

  separate guide rails such as rails or slides.

  The support members 4a which are, in the embodiment chosen, the posts 4a are connected to each other by two upper platforms 5a and 5b, which act respectively as upper and lower lifting part, via the mobile securing means 8 (Figure 3) which will be described more precisely later, their main function being to move from a state of attachment to a state of separation of the upper platforms 5a and

lower 5b with the posts 4a.

  The two posts 4a are fixed to the housing 3 by being offset, by fastening means 9 shown very schematically (FIG. 2) insofar as they are conventional structural fastening means known from

  those skilled in the art, such as, for example, gussets 9a.

  In the example shown in FIG. 3, two platforms 5a and 5b are provided, however, it is also possible to

provide a higher number.

  In addition, the platforms shown have a transverse width such that it is not necessary to interpose guide means between the posts 4a and the upper part of the machine, the posts 4a playing the

role of guiding means.

  Two adjacent feet 2 of the machine are further connected to each other parallel to the direction D, by means of the rigid connection means 6 which

  rely on the upper platform 5a.

  These rigid connection means 6 are, in the example shown, in the form of a transverse rectangular bar 10 fixed to the upper part of the

  of the machine, for example by welding.

  The transverse bar 10 thus fixed bears on the upper platform 5a. It can also be hingedly attached to the upper platform 5a via a

  hinge member 11 as shown, Figure 3.

  This hinge element 11 is a pivot axis and intended to absorb the angle of deformation of the relative position of the feet 2 of the machine relative to each other.

  To allow relative movement of the platforms

  higher forms 5a and 5b relative to each other, the latter are connected together by

  via the cylinder device 7.

  In the example shown, the device forming

  verin 7 is an electrically controlled hydraulic cylinder.

  It may also comprise several jacks placed in parallel between the two upper platforms 5a and

lower 5b.

  We can also provide any type of device forming a cylinder exerting a vertical thrust upwards

  and can be controlled from the outside.

  In FIG. 3, the movable securing means 8 of the upper 5a and lower 5b platforms are shown in particular to the posts 4a.

support 4.

  These mobile securing means 8 therefore have the function of moving from a state of attachment to a state of separation of the upper platform 5a or lower 5b with the corresponding posts 4a. They extend parallel to the plane defined by the platforms

  upper forms 5a and lower 5b.

  In the embodiment shown in FIG. 3, the movable securing means 8 also extend perpendicularly to the plane P defined

  by the two posts 4a of a support means 4.

  The structure of the movable securing means 8 of the upper platform 5a being, in the example shown, identical to those of the lower platform 5b, only the moving means will be described.

  of securing 8 of the upper platform 5a.

  These movable securing means 8 comprise axes 8a which extend parallel to the plane defined by the upper platform 5a and partially to

inside the latter.

  A receiving orifice 8b of the axes 8a is therefore provided in the platform respectively on the side walls 12, 13 of the latter. This receiving orifice 8b is intended to receive the axis 8a so as to allow its displacement horizontally along its axis 8c. Stop elements 8d are provided in the receiving orifice 8b so as to limit the margin of displacement of the axis 8a. There are also provided operating levers 8e attached to the axes 8a at their ends opposite to the posts 4a and intended to cause the displacement of

  the axis 8a in one direction or the other.

  To enable the platform to be secured with the posts 4a, holes 14 are provided in the

  posts 4a on the opposite side of the platform 5a.

  In the case where the posts 4a have a substantially H shape, these holes 14 are through holes formed in the central bar 4c H. In the embodiment shown in Figure 5, the holes 14 are formed in the form of a series of holes 14 extending along the longitudinal axis 4b

  of the post 4a and spaced regularly.

  The series of holes of a post 4a being

  complementary to that of the other pole 4a, the platform

  5a or 5b form, when secured to the posts 4a, defines a plane substantially parallel to that

of the quay.

  Thus, the axis 8a of the movable securing means 8 is introduced via the levers 8e into the holes 14, and the connection between

  the platform 5a and the pole 4a is thus ensured.

  If the posts 4a are of parallelepipedal shape, it can be provided that the holes 14 are blind holes acting as a stop for the axis 8a. On the other hand, it is also possible to provide several sets of holes 14, on the same pole 4a, along its longitudinal axis 4b, to reinforce the attachment, each side wall of the upper platform 5a or lower 5b then comprising corresponding complementary orifices in which are

  introduced axes 8a as described above.

  According to another embodiment, it is also possible for the distribution of the holes 14 to be

  different from one pole 4a to another.

  It is also possible to provide any type of suitable mobile securing means 8 and in particular extending perpendicular to the plane P defined by the

two poles of a medium.

  According to a preferred embodiment, as represented in FIG. 5, it is possible to provide on each post 4a an access system 15 fixed in a rigid manner and along the longitudinal axis 4b of the post 4a, allowing

  thus to access different levels of the pole 4a.

  The different operating phases of lifting are

represented in FIG. 6.

  Initially (Figure 6a), the hydraulic cylinder 7 is placed in the retracted position, the lower platform 5b being secured to the posts 4a, and the upper platform 5a being disengaged from the posts 4a. The control of the jack 7 thus causes the upward movement of the upper platform 5a, and thus of the transverse bar 10 and the upper part of the machine

  port 1 to the maximum of the race.

  In the next operating phase (FIG. 6b) and once the thrust has been carried out, the upper platform 5a is secured to the posts 4a by the movable securing means 8, and the lower platform 5b is separated from with the posts 4a, the

  cylinder 7 then being in the extended position.

  Then (Figure 6c), the cylinder 7 is controlled to move from an extended position to a retracted position. Once this position has been obtained, the lower platform 5b is again secured to the posts 4a and the movable securing means 8 are removed at the upper platform 5a (FIG. 6d) so as to be able to reiterate the operating phases described according to

Figures 6a, 6b and 6c.

  Of course, if the cylinder has a stroke corresponding to the desired enhancement value, the operating phases described are carried out according to the

Figures 6a, 6b, 6c only once.

  The jack 7 of each jack device is thus controlled by an external control circuit (no

  shown) independently of other cylinders.

  However, to ensure a better synchronization in the control of the cylinders, and to be able to make relative corrections, all the cylinders can be further controlled simultaneously by

the external control circuit.

Claims (6)

  1. A method for raising a gantry type port craft (1) with containers adapted to move in a direction (D), for example along a quay, the harbor craft (1) having an external frame of parallelepipedal shape and having four feet (2) substantially vertical, two adjacent feet being connected to each other, on the one hand parallel to the direction (D) by a spar (3) at the lower ends (2a ) of said feet and, secondly perpendicular to the direction (D) by a cross member located above the longitudinal members, characterized in that it comprises the following operating phases: a) for each foot (2), is fixed to the spar (3) corresponding support means (4) for supporting a part of the machine and extending parallel to said foot (2), and to which is connected a lifting unit (5) having an upper lifting part (5a ) and a lower lifting part (5b), movably mounted relative to each other, b) there are further connected two adjacent feet parallel to the direction (D) by rigid connecting means (6) placed above the spar (3) so that these rigid connecting means rest on the upper lifting part (5a), c) cutting each foot (2) between the spar (3) and the rigid connecting means (6) to separate the port machine (1) in two parts, a lower part (lb) and an upper part (la), d) the lower lifting part (5b) is secured to the support means (4), e) the upper lifting part (5a) is detached. ) with the support means (4), f) raising the upper lifting part (5a) of each foot (2) so as to cause the vertical displacement of the upper part (la) of the machine (1). ), g) the upper lifting part (Sa) is secured to the support means (4), h) the lower lifting part (5b) is detached from the support means (4), i) the part lower lifting (5b) of each foot (2) so as to cause the vertical displacement of the lower lifting part (5b) relative to the upper lifting part (Sa), j) repeating the operating phases d) to i) until obtaining the desired enhancement, and k) the upper part (la) is secured to the lower part (lb) of the machine (1) in such a way as to be able to   use the port machine as enhanced.   2. Device for raising a port gantry type craft (1) adapted to move in a direction (D), for example along a quay, the harbor craft (1) having an external frame of parallelepipedal shape and having four feet (2) substantially vertical, two adjacent feet being connected to one another, on the one hand parallel to the direction (D) by a spar (3) at the lower ends (2a ) of said feet and, secondly perpendicular to the direction (D) by a cross member located above the longitudinal members (3), each foot (2) of the machine being cut above the spar (3), for separating the harbor craft (1) into two parts, an upper part (la) to be lifted and a lower part (lb) distinct from the upper part, for carrying out the method according to claim 1, characterized in that the raising device comprises: - for each foot (2), support means (4) fixed to the spar (3) corresponding to support the upper part (la) of the machine, extending parallel to said foot (2), and to which is connected a lifting unit (5) having an upper lifting part (5a) and a lower lifting part (5b) movably mounted relative to each other by means of a jack device (7) and being fixed to the support means (4) via moving means of solidarization (8), and   rigid connecting means (6) placed   above the spar (3) and connecting two adjacent feet parallel to the direction (D), so that these rigid connecting means rely on the part superior lifting (Sa).   3. Enhancement device according to claim 2, characterized in that the distance between two adjacent support means (4) is substantially less than the distance between the two feet (2).   adjacent to the gear that corresponds to them.   4. Enhancement device according to one of   claims 2 and 3, characterized in that the means of   support (4) comprise two substantially vertical support elements (4a) fixed on either side of the corresponding spar (3), being offset with respect to the corresponding foot.   5. Enhancement device according to one   any of claims 2 to 4, characterized in that   the support means (4) are fixed to the spar (3) on the one hand at a point at the lower end of the support means (4) and on the other hand at a point situated substantially at the end high support means (4). 6. Container gantry type gantry craft comprising an enhancement device according to one of   any of claims 2 to 5.