WO2009119791A1 - Crane feed system and method - Google Patents
Crane feed system and method Download PDFInfo
- Publication number
- WO2009119791A1 WO2009119791A1 PCT/JP2009/056251 JP2009056251W WO2009119791A1 WO 2009119791 A1 WO2009119791 A1 WO 2009119791A1 JP 2009056251 W JP2009056251 W JP 2009056251W WO 2009119791 A1 WO2009119791 A1 WO 2009119791A1
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- WIPO (PCT)
- Prior art keywords
- rail
- power supply
- power
- crane
- partial
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
- B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers
Definitions
- the present invention relates to a crane power feeding technique, and particularly to a crane power feeding technique for supplying power from a power feeding rail to a crane device.
- a method of supplying power via a trolley wire installed along a lane as a power supply system that supplies power to a crane device such as a gate-type transfer crane device that loads and unloads a container with respect to a trailer in a container terminal See, for example, JP-A-2003-137494.
- a crane apparatus when a moving body such as a person or a vehicle other than the crane apparatus enters the lane, it is necessary to prevent an electric shock to the trolley wire. For this reason, when the structure which insulates an overhead wire along a lane is installed, it becomes impossible for a mobile body to move freely across a lane.
- a trolley wire is installed along a lane having an extremely long distance provided in a container terminal, and a structure such as a passage for insulating the trolley wire is continuously provided along the trolley wire. It is necessary to install. For this reason, the container worker and the trailer for transporting the container cannot cross the lane and need to make a detour to the end of the lane. Further, in the case of a tire type transfer crane device, since the straight traveling accuracy is not so high, the current collecting structure for maintaining the power supply from the trolley wire becomes complicated.
- a method using a power supply rail instead of the trolley wire can be considered. If this power supply rail is provided on the ground, it is possible for a person to straddle and cross it, and if it is provided at almost the same height as the ground, it is possible for a vehicle or device to move freely across the road. . Moreover, even if the traveling device has a low straight traveling accuracy such as a crane device, the power supply can be easily maintained by giving the cart that collects power by traveling on the power supply rail. However, when the power supply rail is used, the contact portion between the power supply rail and the carriage cannot be insulated, and there is a problem that an electric shock may occur when a moving body passes on the power supply rail.
- the present invention is intended to solve such a problem, and an object of the present invention is to provide a crane power feeding system and method capable of preventing an electric shock at a power feeding rail provided on the ground.
- a crane power feeding system includes a crane device that operates by a power source supplied from the outside, and a feeding rail that is provided along a lane in which the crane device travels.
- a power supply unit that supplies power to the power supply rail, and a current collector that collects power supplied from the power supply unit by making electrical contact with the power supply rail on the crane device;
- a plurality of electric rails that are electrically insulated from each other are provided by covering a part of the power supply rail including the electric point as a protective section from above, thereby providing an electric shock protection unit that protects against electric shock to the power supply rail in the protective section.
- the rail length of the partial rail is equal to or less than the protection distance from the end point of the protection section to the current collecting point. Supplying the source power only to the part rails are in electrical contact.
- the crane power supply method includes a crane device that operates with power supply supplied from the outside, a power supply rail provided along a lane in which the crane device travels, and a power supply for the power supply rail.
- a crane power supply method used in a crane power supply system including a power supply unit that supplies electric power, wherein the power supply supplied from the power supply unit by electrically contacting the power supply rail via a current collector is collected by a crane device.
- a step of collecting power a step of protecting an electric shock to the power supply rail in the protection section by covering a part of the power supply rail including the current collection point as a protection section from above with a crane device;
- the rail length is equal to or less than the protection distance from the end point to the current collecting point.
- all the partial rails that are in electrical contact with the current collector can be covered with the cover. For this reason, the partial rail that is being fed is not exposed from the cover, and it is possible to suppress electric shock to the partial rail that is being fed. Therefore, any moving body such as a person, a vehicle, or a device can safely cross the power supply rail provided in the lane where the crane device travels, and a complicated configuration is used. It is possible to provide a ground power supply method.
- FIG. 1 is an explanatory diagram of a crane power feeding system according to a first embodiment of the present invention.
- FIG. 2 is a side view showing the configuration of the crane apparatus.
- FIG. 3 is a front view showing the configuration of the crane apparatus.
- FIG. 4 is a plan view showing a configuration example of the container terminal.
- FIG. 5 is a plan view showing a main part of the power supply rail.
- FIG. 6 is a front view showing a main part of the power supply rail.
- FIG. 7 is a cross-sectional view showing the main part of the power supply rail.
- FIG. 8 is a block diagram showing the configuration of the switch.
- FIG. 9 is an explanatory diagram illustrating the relationship between the current collectors and the partial rails of the crane power feeding system according to the first embodiment of the present invention.
- FIG. 9 is an explanatory diagram illustrating the relationship between the current collectors and the partial rails of the crane power feeding system according to the first embodiment of the present invention.
- FIG. 9 is an
- FIG. 10 is an explanatory diagram illustrating an example of a power feeding operation of the crane power feeding system according to the first embodiment of the present invention.
- FIG. 11 is an explanatory diagram illustrating another power feeding operation of the crane power feeding system according to the first embodiment of the present invention.
- FIG. 12 is an explanatory diagram illustrating a relationship between the current collectors and the partial rails of the crane power feeding system according to the second embodiment of the present invention.
- FIG. 13 is an explanatory diagram illustrating an example of a power feeding operation of the crane power feeding system according to the second embodiment of the present invention.
- This crane power supply system is a power supply system based on a ground power supply system that supplies power to the crane device 6 from the ground, and mainly includes the crane device 6, the power supply rail 1, and the power supply unit 2.
- the power feeding unit 2 is a facility device that is installed outside the crane device 6 such as on the ground or underground and supplies power power 25 of the crane device 6.
- the crane device 6 is a vehicle device that collects power supply power 25 via the current collector 4 and travels on a lane based on the power supply power 25 to perform cargo handling at an arbitrary position.
- the power supply rail 1 is provided on the ground G along the lane of the crane device 6 and electrically contacts the current collector 4 of the crane device 6 at the current collection point P, thereby supplying power to the crane device 6. It is a rail.
- the crane device 6 is covered (protected) from a part of the power supply rail 1 including the current collection point P as a protection section S from above, thereby protecting (preventing) electric shock on the power supply rail 1 in the protection section S.
- the cover 3 (electric shock protection portion) is provided, and the power supply rail 1 is constituted by a row of a plurality of partial rails 11 that are electrically insulated from each other.
- the rail length L of the partial rail 11 is defined as an end point of the protection section S.
- the power source 25 is supplied only to the partial rail 11 that is in electrical contact with the current collector 4 among the partial rails 11 by the power feeding unit 2 with a length equal to or shorter than the protective distance W from E to the current collecting point P. It is what I did.
- the crane device 6 is a crane device such as a gate-type transfer crane device that loads and unloads a container on a trailer in a container terminal.
- the crane device 6 for example, power supply power 25 for traveling along a lane provided in a container terminal and performing cargo handling at an arbitrary position is supplied from a power supply rail 1 provided on the ground.
- a current collector 4 for collecting current is provided.
- the crane device 6 includes a protection section S that covers a part of the power supply rail 1 including the current collection point P where the power supply rail 1 and the current collector 4 are in electrical contact with each other.
- a cover 3 for protecting the electric shock on the power supply rail 1 in the section S is provided.
- the positional relationship between the end points of the protection section S and the current collecting point P is fixed, and the protection section S moves on the power supply rail 1 according to the traveling of the crane device 6.
- the protection section S may be formed by using both of them, or a plurality of these parts may be combined to form the protection section S.
- the power supply rail 1 is provided along the lane in which the crane device 6 travels, and feeds the power source 25 to the crane device 6 by making electrical contact with the current collector 4 of the crane device 6 at the current collection point P. It is a rail.
- the power supply rail 1 is composed of a row of a plurality of partial rails 11 that are electrically insulated from each other.
- the partial rail 11 has a rail length L equal to or less than a protection distance W from the end point E of the protection section S to the current collection point P. have.
- the power feeding unit 2 is a facility device installed on the ground including the underground, and includes a power supply device 21 and a switching unit 22.
- the power supply device 21 has a function of converting power generated by the power generation facility into a predetermined voltage and supplying power power 25 of the crane device 6.
- Examples of the power source 25 for the crane device 6 include a DC power source, an AC power source, and a three-phase AC power source.
- the switching unit 22 includes a switching device 23 provided between the power supply device 21 and each partial rail 11.
- the switching device 23 has a function of switching and supplying the power supply 25 to the partial rail 11 only during a period when the electrical contact of the current collector 4 of the crane device 6 with respect to the corresponding partial rail 11 is detected. Yes. Accordingly, the power supply unit 2 supplies the power supply power 25 only to the partial rail 11 that is in electrical contact with the current collector 4 of the crane device 6 in the power supply rail 1.
- the rail length L of the partial rail 11 is limited to the protection distance W from the end point E of the protection section S to the current collection point P or less. For this reason, even when one end of the partial rail 11 is in electrical contact with the current collector 4 and the power supply power 25 is supplied to the partial rail 11, the section where there is a possibility of electric shock with respect to the partial rail 11 is not collected. The section is from the electrical point P to the rail length L.
- the cover 3 of the crane device 6 is always protected against electric shock for the power supply rail 1 in the protection section S at the protection distance W from the current collection point P. Accordingly, in the power supply rail 1, the electric shock is always protected by the cover 3 for the partial rail 11 to which the power supply power 25 is supplied via the switching device 23.
- the crane apparatus 6 is composed of a gantry 60 composed of a portal frame as a whole.
- the gantry 60 includes an upper beam 6A, leg portions 6B that support both ends of the beam 6A, and a base 6C that supports the leg portions 6B.
- a tire 6E is provided below the base 6C via a carriage 6D. The tire 6E is supported by the carriage 6D so that the traveling direction can be freely changed to a forward direction X along the lane or a perpendicular direction Y orthogonal to the lane.
- an upper portion of the base 6C sandwiched between the leg portions 6B is in contact with a power supply device or a power storage device that supplies power to each unit with the power source collected by the current collector 4, and further to the current collector 4.
- a device unit 6G that houses an electrical device such as a signal output device that outputs a power supply request signal 24 to the partial rail is provided.
- a trolley 6H is provided on the beam 6A at the upper portion of the gantry 60, and the trolley 6H travels on the rail of the beam 6A in the right-angle direction Y by driving the traverse motor 6L mounted on the trolley 6H. .
- a spreader 6I for suspending the upper portion of the container 9 is suspended from the trolley 6H via a cable 6J.
- the main winding motor 6M placed on the trolley 6H is driven to drive the cable 6J. By performing the winding up and down, the spreader 6I moves up and down.
- the trolley 6H is provided with electrical equipment such as a command room 6K on which an operator is boarded and a controller.
- the cover 3 is an outer lower portion of the base 6C, and is attached between the two carriages 6D at a position facing the power supply rail 1 on the ground G via the support member 5 and the arm 5A. By covering a partial section of the power supply rail 1 including from above, electric shock in the section is protected.
- the current collector 4 attached to the cover 3 is always in electrical contact with the power supply rail 1 by traveling or sliding on the power supply rail 1 even when the crane device 6 is traveling. Power supply power from the power supply device 21 collected by the current collector 4 is input to the crane device 6.
- the container terminal 70 is provided facing the port wharf 7A, and the container 9 is loaded and unloaded from the ship 7B by a container crane 7C disposed on the wharf 7A.
- the container terminal 70 is provided with a plurality of lanes 71 each having a rectangular area extending along the longitudinal direction of the container 9, that is, the forward direction X.
- the crane device 6 travels in the forward direction X in the lane 71.
- the containers 9 placed in the lane 71 are sorted efficiently.
- the container terminal 70 is provided with a gate 73 on the road 72 side, and the trailer 91 passes through the gate 73 to carry in / out the container 9 and transport the container 9 to other locations in the container terminal 70. I do.
- the lane 71 is provided with a passage for the trailer 91, and the container 9 is loaded and unloaded by the crane device 6 on the trailer 91 stopped in this passage.
- the power supply device 21 of the crane power feeding system is arranged on the ground or underground at the end of the lane 71, and the power feeding rail 1 extends along the forward direction X at the side end of the lane 71. It is installed.
- the crane apparatus 6 is supplied with power from a power supply device 21 via a current collector 4 that is in electrical contact with the power supply rail 1.
- each partial rail 11 has a rail length L that is equal to or shorter than the protection distance W from the end point E of the protection section S to the current collection point P by the current collector 4. For this reason, the supplied partial rail 11 is completely protected from electric shock by the cover 3, and there is no risk of electric shock.
- the power supply rail 1 is composed of two power supply rails 1A and 1B provided in parallel in a groove 12 formed on the ground G. These power supply rails 1A and 1B are composed of a row of a plurality of partial rails 11A and 11B that are electrically insulated from each other. These partial rails 11A and 11B only have to have a rail length L that is equal to or less than the protection distance W from the end point E of the protection section S to the current collecting point P, and all of these partial rails need to have the same rail length L. There is no. As for the insulating portion 13, a general insulator such as resin may be used, and a space provided between adjacent partial rails may be used as the insulator. A DC power supply or an AC power supply is supplied from the power supply device 21 through the two supply rails 1A and 1B.
- the cover 3 of the crane device 6 is composed of a box-shaped main body 3A having an opening at the bottom facing the power supply rail 1, and covers a part of the power supply rail 1 including the current collection point P from above by covering the section 3A.
- the main body 3A may be made of a member that can prevent an electric shock of an operator, and may be a plate-like member or a plate-like member having a vent hole. Or you may comprise 3 A of main bodies with a cage
- the current collectors 4A and 4B are wheels that are rotatably supported in the inner chamber of the cover 3 via the axle 4X, and are electrically connected to the power supply rails 1A and 1B by rolling on the power supply rails 1A and 1B.
- the power supply power 25 is collected from the power supply rails 1A and 1B.
- the current collectors 4A and 4B have a partial rail 11A in which the protection distance W between the current collection point P in contact with the power supply rails 1A and 1B and the end point E of the protection section S of the cover 3 constitutes the power supply rails 1A and 1B. , 11B is supported at a position that is longer than the rail length L.
- One end of the arm 5A is rotatably attached to the end of the support member 5, and the other end is rotatably attached to the upper part of the main body 3A.
- One end of the hydraulic cylinder 5B is rotatably attached to the side portion of the support member 5, and the other end is rotatably attached to the middle of the arm 5A.
- a hydraulic circuit (not shown) is controlled so that, for example, hydraulic oil on the rod side and the head side of the hydraulic cylinder 5B is communicated via a reservoir tank (not shown).
- the arm 5 ⁇ / b> A is brought into a state in which the arm 5 ⁇ / b> A can freely rotate up and down with the support member 5 as a fulcrum.
- the cover 3 is lowered by its own weight, and the current collector 4 of the cover 3 comes into electrical contact with the power supply rail 1 on the ground G. Accordingly, since the vertical movement of the crane device 6 is not transmitted to the cover 3, the current collector 4 can smoothly run or slide on the power supply rail 1 even when the ground G undulates or the crane device 6 shakes. it can.
- a hydraulic circuit (not shown) is controlled to supply hydraulic oil from an oil pump (not shown) to the rod side of the hydraulic cylinder 5B, for example, and the head side hydraulic oil is returned to the reservoir tank.
- the cover 3 may be lifted from the ground G by lifting the arm 5A.
- the cover 3 may be pressed against the ground G via the arm 5A by increasing the internal pressure of the hydraulic cylinder 5B to some extent.
- the upper limit of the internal pressure of the hydraulic cylinder 5B may be adjusted by the relief valve of the hydraulic cylinder 5B so that a predetermined pressure or more is not applied to the cover 3. Thereby, it is possible to improve current collection efficiency.
- the partial rail 11 constituting the power supply rail 1 is provided with a switching device 23 for controlling the supply of power from the power supply device 21 to each partial rail 11.
- the switching device 23 is provided with a detector 23A and a switch 23B as main functional units.
- the detector 23A includes a dedicated circuit unit such as a signal detection circuit, and has a function of detecting and outputting the presence / absence of a power supply request signal 24 output from the crane device 6 via the partial rail 11. For example, if the power supply request signal 24 is always output from the power supply unit (not shown) of the crane device 6 via the current collector 4, only the partial rail 11 in electrical contact with the current collector 4 is automatically Therefore, the power supply request signal 24 is output.
- a high-frequency signal having a predetermined frequency is used as the power supply request signal 24, the power supply request signal 24 output to the partial rail 11 from the crane device 6 can be obtained by providing a filter circuit for selecting the frequency signal component in the signal detection unit 23A. It can be detected.
- the switch 23B is composed of a dedicated circuit unit such as a relay circuit, and based on a detection output indicating whether or not the power supply request signal 24 is detected from the detector 23A, the power supply from the power supply device 21 to the corresponding partial rail 11 is provided. It has a function of supplying power 25 by switching. Thereby, only when the power supply request signal 24 is detected by the detector 23A, the power supply power 25 is supplied to the partial rail 11 based on the detection output, and the power supply request signal 24 is not detected by the detector 23A. The supply of the power supply 25 to the partial rail 11 is stopped based on the detection output.
- the length of the wiring cable connecting the switching device 23 and the partial rail 11 can be shortened. Further, by routing the wiring cable from the power supply device 21 along the power supply rail 1 and branching the wiring cable to connect to each switching device 23, or by connecting the wiring cable by each switching device 23, Power supply power can be supplied from the power supply device 21 to each switching device 23. Therefore, the length of the wiring connecting the power supply device 21 and each switching device 23 can be shortened, and the wiring work burden can be greatly reduced.
- FIG. 9 shows an example in which the cover 3 is provided with two current collectors 41 and 42.
- the positions of the current collectors 41, 42, that is, the current collecting point P are separated from the end point E of the protection section S by the protection distance W.
- the rail length L of the partial rails 11X, 11Y, and 11Z is equal to or less than the protection distance W.
- a case where the distance between the two current collectors 41 and 42 is shorter than the rail length L will be described as an example.
- the current collector 41 When the cover 3 moves in the X direction on the power supply rail 1 and enters the partial rail 11X, the current collector 41 is in electrical contact with the partial rail 11X for the first time at time T1, and the partial current from the partial rail 11X at time T3. It moves to the rail 11Y, moves from the partial rail 11Y to the partial rail 11Z at time T5, and leaves the partial rail 11Z at time T7.
- the current collector 42 is in electrical contact with the partial rail 11X for the first time at time T2, moves from the partial rail 11X to the partial rail 11Y at time T4, and moves from the partial rail 11Y to the partial rail 11Z at time T6. It leaves
- the current collector 41 is initially in contact with the partial rails 11X, 11Y, and 11Z at times T1, T3, and T5, respectively.
- the rail length L of these partial rails varies from the current collection point P to the end point E of the protection section S. Or less than the protection distance W. For this reason, at time T1, T3, T5, when the current collector 41 first contacts one end of the partial rail, the other end of the partial rail is already hidden under the cover 3.
- the current collector 42 is detached from the partial rails 11X, 11Y, and 11Z at times T4, T6, and T8, respectively.
- the rail length L of these partial rails is the end point of the protection section S from the current collection point P. Less than or equal to the protection distance W to E. Therefore, at time T4, T6, T8, when the current collector 42 is detached from one end of the partial rail, the other end of the partial rail is still hidden under the cover 3.
- FIG. 10 shows a case where the distance between the two current collecting points P is shorter than the rail length L.
- the partial rail does not enter between the two current collecting points P.
- the partial rail 11X enters between the current collectors 41 and 42, that is, between the current collecting points P.
- power supply to the partial rail 11X is temporarily stopped and restarted. The However, since these power supply stops and restarts are all performed in a state of being hidden under the cover 3, there is no possibility of electric shock.
- the rail length L of the partial rail may be equal to or less than the protection distance W between the current collecting point P and the end point E of the current collector that is closest to the end point E of the protection section S among the current collectors.
- the present embodiment is configured such that a current collector that collects the power supplied from the power feeding unit by making electrical contact with the power feeding rail is connected to the crane device, and a power feeding rail including the current collecting point P.
- a cover electrical shock protection portion
- the power supply rail is electrically insulated from each other. It consists of a row of rails, and the rail length L of this partial rail is set to a length equal to or shorter than the protective distance W from the end point E of the protection section S to the current collecting point P. Since the power supply power 25 is supplied only to the partial rails that are in contact with each other, all the partial rails that are in electrical contact with the current collector can be covered with the cover.
- the partial rail that is being fed is not exposed from the cover, and it is possible to suppress electric shock to the partial rail that is being fed. Therefore, any moving body such as a person, a vehicle, or a device can safely cross the power supply rail provided in the lane where the crane device travels, and a complicated configuration is used. It is possible to provide a ground power supply method.
- the power feeding unit is based on an electrical signal obtained from the partial rail, a detector that detects electrical contact between the partial rail and the current collector, and a detection output of the detector. Since the switch is configured to switch and supply power to the corresponding partial rail, the power can be switched and supplied to any partial rail with a simple configuration. Furthermore, since an electrical signal is output from the crane device to the partial rail with which the current collector is in electrical contact, the electrical contact between the partial rail and the current collector can be detected very easily and accurately. be able to.
- the power supply rail is configured by a row of partial rails
- the row of partial rails is provided only in a section where an arbitrary moving body enters the lane of the crane device.
- the power supply rail may be configured from the above. Thereby, the number of partial rails and switches can be suppressed, and the equipment scale and equipment cost of the crane power feeding system can be reduced.
- the power supply rail is supported by the cover of the crane device so as to be rotatable and rolls on the power supply rail, and the physical contact point with the power supply rail serves as a current collection point. Since the wheel for collecting power from the power supply is used, it is possible to realize both the function of collecting power from the power supply rail and the function of supporting the cover above the power supply rail. Furthermore, the configuration of the crane power feeding system can be simplified.
- a current collector 43 is provided in the center of both end points E of the protection section S. Between the current collector 43 and both end points E, the crane device 6 and Is provided with two insulated wheels 44. Like the current collectors 4A and 4B of FIG. 7 described above, these wheels 44 are wheels that roll on the power supply rails 1A and 1B, and are rotatably supported in the inner chamber of the main body 3A via an axle. . As the insulating structure of the wheel 44, a generally known technique such as an insulating axle or bearing may be used.
- the current collector 43 may use wheels in the same manner as the current collectors 4A and 4B of FIG. 7 described above, but the weight of the cover 3 is supported by the wheel 44, and therefore the current collector 43 supports the weight of the cover 3 by the current collector 43. There is no need. For this reason, you may use the slider pressed so that it may slide with the electric power feeding rail 1.
- FIG. The position of the current collector 43, that is, the current collecting point P is separated from the both end points E of the cover 3 by a protection distance W.
- the rail length L of the partial rails 11X and 11Y is equal to or less than the protection distance W.
- the other structure of the crane electric power feeding system in this Embodiment it is the same as that of 1st Embodiment, and detailed description here is abbreviate
- the current collector 43 When the cover 3 moves in the X direction on the power supply rail 1 and enters the partial rail 11X, the current collector 43 is in electrical contact with the partial rail 11X for the first time at time T1, and the partial current from the partial rail 11X at time T2. Move to the rail 11Y, move from the partial rail 11Y to the partial rail 11Z at time T3, and leave the partial rail Y at time T7. With such movement of the current collector 43, power is supplied to the partial rail 11X only during the period from time T1 to time T2, and power is supplied to the partial rail 11Y only during the period from time T2 to time T3.
- the timing when there is a possibility of electric shock includes the time when the current collector 43 first contacts with these partial rails and the time when the current collector 43 leaves the partial rail that has been in contact so far. can give.
- the current collector 43 is initially in contact with the partial rails 11X and 11Y at times T1 and T2, respectively.
- the rail length L of these partial rails is equal to or less than the protective distance W from the current collection point P to the end point E of the cover 3. It is. For this reason, at time T1, T2, when the current collector 43 first contacts one end of the partial rail, the other end of the partial rail is already hidden under the cover 3.
- the current collector 43 is detached from the partial rails 11X and 11Y at times T2 and T3, respectively, but the rail length L of these partial rails is equal to or less than the protective distance W from the current collection point P to the end point E of the cover 3. It is. For this reason, at time T2 and T3, when the current collector 43 is detached from one end of the partial rail, the other end of the partial rail is still hidden under the cover 3. Accordingly, the power supply start and power supply stop for the partial rails 11X and 11Y are performed in a state where the partial rails 11X and 11Y are hidden under the cover 3. For this reason, the supplied partial rail is always hidden under the cover 3, and the electric shock is suppressed by the cover 3 by the supplied partial rail.
- the current collector of the crane apparatus has a current collection point P in the middle part of the protection section S, and the power collection point P and the end point E of the protection section S are During this period, the wheels that roll on the power supply rail are supported rotatably, so that the cover can be stably supported above the power supply rail even when the current collecting point is located near the center of the cover. Can do. For this reason, the rail length of a partial rail can be brought close to 1/2 of the protection section S, the number of switching devices provided for each partial rail and each partial rail can be minimized, and the equipment of the crane feeding system Scale and equipment costs can be reduced.
- a plurality of rails constituting the power supply rail 1 are provided in parallel to the outside of one tire 6 ⁇ / b> E of the crane device 6.
- the position where the power supply rail 1 is provided with respect to the crane device 6 is not limited to this.
- a plurality of rails constituting the power supply rail 1 may be provided in parallel to the inside of the tire 6E of the crane device 6, or the plurality of rails may be provided in parallel by separating the outer side and the inside of the tire 6E. May be.
- a plurality of rails constituting the power supply rail 1 may be provided separately from the outside or the inside of the left and right tires 6E that support the gantry 60 of the crane device 6.
- the power supply rail 1 is used as a power supply rail for the power supply 25 and also used as a travel rail for traveling the cover 3 of the crane device 6.
- the case has been described as an example, rails according to these purposes may be separately provided in parallel.
- the case where the power supply rail 1 is provided in the groove 12 provided on the ground G has been described as an example.
- the present invention is not limited to this. Absent.
- the power supply rail 1 may be provided on the ground G as it is.
- a crane power supply technology for supplying power from a power supply rail to a crane device.
- it is used in a gate-type crane device that performs loading and unloading of a container with respect to a ship or a trailer at a container terminal.
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Abstract
Description
また、タイヤ式のトランスファークレーン装置の場合、直進走行精度はそれほど高くないため、トロリー線からの給電を維持するための集電構造も複雑となる。 In particular, in the case of a transfer crane device, a trolley wire is installed along a lane having an extremely long distance provided in a container terminal, and a structure such as a passage for insulating the trolley wire is continuously provided along the trolley wire. It is necessary to install. For this reason, the container worker and the trailer for transporting the container cannot cross the lane and need to make a detour to the end of the lane.
Further, in the case of a tire type transfer crane device, since the straight traveling accuracy is not so high, the current collecting structure for maintaining the power supply from the trolley wire becomes complicated.
しかしながら、給電レールを用いた場合、給電レールと台車との接触部分については絶縁することができず、給電レール上を移動体が通過した場合に感電する可能性があるという問題点があった。 In such a power supply system, a method using a power supply rail instead of the trolley wire can be considered. If this power supply rail is provided on the ground, it is possible for a person to straddle and cross it, and if it is provided at almost the same height as the ground, it is possible for a vehicle or device to move freely across the road. . Moreover, even if the traveling device has a low straight traveling accuracy such as a crane device, the power supply can be easily maintained by giving the cart that collects power by traveling on the power supply rail.
However, when the power supply rail is used, the contact portion between the power supply rail and the carriage cannot be insulated, and there is a problem that an electric shock may occur when a moving body passes on the power supply rail.
したがって、クレーン装置が走行するレーンに条設されている給電レールを、人、車両、装置などの任意の移動体が安全に横切って通過することができ、複雑な構成を用いることなる極めて安全な地上給電方式を提供することが可能となる。 According to the present invention, all the partial rails that are in electrical contact with the current collector can be covered with the cover. For this reason, the partial rail that is being fed is not exposed from the cover, and it is possible to suppress electric shock to the partial rail that is being fed.
Therefore, any moving body such as a person, a vehicle, or a device can safely cross the power supply rail provided in the lane where the crane device travels, and a complicated configuration is used. It is possible to provide a ground power supply method.
[第1の実施の形態]
まず、図1を参照して、本発明の第1の実施の形態にかかるクレーン給電システムについて説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
First, a crane power feeding system according to a first embodiment of the present invention will be described with reference to FIG.
クレーン装置6は、集電子4を介して電源電力25を集電するとともに、この電源電力25に基づきレーンを走行して任意の位置で荷役を行う車両装置である。
給電レール1は、クレーン装置6のレーンに沿って地上Gに条設され、クレーン装置6の集電子4と集電点Pで電気的に接触することにより、電源電力25をクレーン装置6へ給電するレールである。 The power feeding unit 2 is a facility device that is installed outside the
The
The
次に、図1を参照して、本発明の第1の実施の形態にかかるクレーン給電システムについて詳細に説明する。
クレーン装置6は、コンテナターミナル内でトレーラーに対するコンテナの積み降ろしを行う門型のトランスファークレーン装置などのクレーン装置である。 [Crane supply system]
Next, with reference to FIG. 1, the crane electric power feeding system concerning the 1st Embodiment of this invention is demonstrated in detail.
The
また、このクレーン装置6には、給電レール1と集電子4とが電気的に接触する集電点Pを含む給電レール1の一部を、保護区間Sとしてその上方から覆うことにより、当該保護区間Sでの給電レール1に対する感電を保護するカバー3が設けられている。 In the
Further, the
この給電レール1は、互いに電気的に絶縁された複数の部分レール11の列からなり、この部分レール11は、保護区間Sの端点Eから集電点Pまでの保護距離W以下のレール長Lを有している。 The
The
電源装置21は、発電設備で発電された電力を所定の電圧に変換してクレーン装置6の電源電力25を供給する機能を有している。クレーン装置6の電源電力25としては、例えば直流電源、交流電源、3相交流電源などがある。 The power feeding unit 2 is a facility device installed on the ground including the underground, and includes a
The
したがって、給電部2からは、給電レール1のうち、クレーン装置6の集電子4と電気的に接触している部分レール11に対してのみ電源電力25が供給される。 The switching
Accordingly, the power supply unit 2 supplies the
一方、クレーン装置6のカバー3により、当該集電点Pから保護距離Wの保護区間S内の給電レール1については、常に感電保護されている。したがって、給電レール1のうち、切替装置23を介して電源電力25が供給されている部分レール11については、必ずカバー3により感電が保護されることになる。 At this time, as described above, the rail length L of the
On the other hand, the
次に、図2および図3を参照して、本発明かかるクレーン給電システムが適用されるクレーン装置6の構成例について詳細に説明する。 [Crane equipment]
Next, with reference to FIG. 2 and FIG. 3, the structural example of the
また、脚部6Bに挟まれた基台6Cの上部には、集電子4で集電した電源電力を各部に供給する給電装置や蓄電装置、さらには集電子4とでき的に接触している部分レールに対して給電要求信号24を出力する信号出力装置などの電気機器を収納する機器ユニット6Gが設けられている。 The
Further, an upper portion of the
次に、図4を参照して、本実施の形態にかかるクレーン給電システムが用いられるコンテナターミナルについて説明する。
コンテナターミナル70は、港の埠頭7Aに面して設けられており、埠頭7Aに配置されたコンテナクレーン7Cにより、船舶7Bに対するコンテナ9の積み降ろしが行われる。 [Container Terminal]
Next, with reference to FIG. 4, the container terminal in which the crane electric power feeding system concerning this Embodiment is used is demonstrated.
The
コンテナターミナル70には、道路72側にゲート73が設けられており、トレーラー91はこのゲート73を通過してコンテナ9の搬入・搬出や、コンテナターミナル70内の他の場所へのコンテナ9の運搬を行う。 The
The
各レーン71には、例えばそのレーン71端部の地上または地下に、クレーン給電システムの電源装置21が配置されており、レーン71の側端部には順方向Xに沿って給電レール1が条設されている。クレーン装置6には、この給電レール1と電気的に接触する集電子4を介して、電源装置21から電源電力が供給される。 The
In each
次に、図5~図7を参照して、本発明の第1の実施の形態にかかるクレーン給電システムの給電レールについて詳細に説明する。 [Power supply rail]
Next, the power supply rail of the crane power supply system according to the first embodiment of the present invention will be described in detail with reference to FIGS.
本体3Aについては、作業員の感電を防止しうる部材で構成すればよく、板状部材、さらには通気孔を有する板状部材を用いればよい。あるいは、網状部材や棒状部材の組合せを用いて、カゴ体あるいは枠体で本体3Aを構成してもよい。 The
The
これら集電子4A,4Bは、カバー3のうち、給電レール1A,1Bと接触する集電点Pと保護区間Sの端点Eとの保護距離Wが、給電レール1A,1Bを構成する部分レール11A,11Bのレール長Lより長い距離となる位置に支持されている。 The
The
次に、図8を参照して、本実施の形態にかかるクレーン給電システムの切替器について詳細に説明する。
給電レール1を構成する部分レール11には、個々の部分レール11に対する電源装置21からの電源電力の供給を制御する切替装置23が設けられている。
この切替装置23には、主な機能部として、検出器23Aと切替器23Bとが設けられている。 [Switching device]
Next, with reference to FIG. 8, the switch of the crane electric power feeding system concerning this Embodiment is demonstrated in detail.
The
The switching
次に、図9~図11を参照して、本発明の第1の実施の形態にかかるクレーン給電システムの動作について説明する。 [Operation of crane power supply system]
Next, the operation of the crane power feeding system according to the first embodiment of the present invention will be described with reference to FIGS.
同様に、集電子42は、時刻T2に初めて部分レール11Xと電気的に接触し、時刻T4に部分レール11Xから部分レール11Yへ移動し、時刻T6に部分レール11Yから部分レール11Zへ移動し、時刻T8に部分レール11Zから離れる。この際、集電子41,42の時刻差は、集電子41,42の移動速度と集電子41,42間の距離で決定される。 When the
Similarly, the
この際、部分レール111X,11Y,11Zにおいて、感電の可能性があるタイミングとしては、集電子41がこれら部分レールと最初に接触した時点、および集電子42がそれまで接触していた部分レールから離脱する時点があげられる。 On the other hand, with the movement of the
At this time, in the
同様に、集電子42については、時刻T4,T6,T8に、それぞれ部分レール11X,11Y,11Zから離脱しているが、これら部分レールのレール長Lは集電点Pから保護区間Sの端点Eまでの保護距離W以下である。このため、時刻T4,T6,T8において、集電子42が部分レールの一端から離脱した時点では、その部分レールの他端はまだカバー3の下に隠れていることになる。 The
Similarly, the
この場合、例えば時刻T2から時刻T3の間に、集電子41,42間すなわち集電点P間に部分レール11Xが入り込んでおり、この期間において、部分レール11Xに対する給電が一旦停止されて再開される。しかし、これら給電停止および再開は、すべてカバー3の下に隠れた状態で行われるため、感電の可能性はない。 FIG. 10 shows a case where the distance between the two current collecting points P is shorter than the rail length L. In this case, the partial rail does not enter between the two current collecting points P. When the distance between them is longer than the rail length L of the partial rail, there is a state in which the partial rail enters between these two current collection points P, and thus the power feeding operation as shown in FIG.
In this case, for example, between time T2 and time T3, the
このように、本実施の形態は、クレーン装置に、給電レールと電気的に接触することにより給電部から供給された電源電力を集電する集電子と、当該集電点Pを含む給電レールの一部を保護区間Sとしてその上方から覆うことにより、当該保護区間Sでの給電レールに対する感電を保護するカバー(感電保護部)を設け、給電レールを、互いに電気的に絶縁された複数の部分レールの列から構成し、この部分レールのレール長Lを、保護区間Sの端点Eから集電点Pまでの保護距離W以下の長さとし、給電部により、部分レールのうち集電子と電気的に接触している部分レールに対してのみ電源電力25を供給するようにしたので、集電子と電気的に接触している部分レールは、すべてカバーにより覆うことができる。 [Effect of the first embodiment]
As described above, the present embodiment is configured such that a current collector that collects the power supplied from the power feeding unit by making electrical contact with the power feeding rail is connected to the crane device, and a power feeding rail including the current collecting point P. By covering a part as a protection section S from above, a cover (electric shock protection portion) is provided to protect against electric shock to the power supply rail in the protection section S, and the power supply rail is electrically insulated from each other. It consists of a row of rails, and the rail length L of this partial rail is set to a length equal to or shorter than the protective distance W from the end point E of the protection section S to the current collecting point P. Since the
したがって、クレーン装置が走行するレーンに条設されている給電レールを、人、車両、装置などの任意の移動体が安全に横切って通過することができ、複雑な構成を用いることなる極めて安全な地上給電方式を提供することが可能となる。 For this reason, the partial rail that is being fed is not exposed from the cover, and it is possible to suppress electric shock to the partial rail that is being fed.
Therefore, any moving body such as a person, a vehicle, or a device can safely cross the power supply rail provided in the lane where the crane device travels, and a complicated configuration is used. It is possible to provide a ground power supply method.
さらに、クレーン装置から、集電子が電気的に接触している部分レールに対して電気信号を出力するようにしたので、極めて容易にかつ正確に部分レールと集電子との電気的接触を検出することができる。 In the present embodiment, the power feeding unit is based on an electrical signal obtained from the partial rail, a detector that detects electrical contact between the partial rail and the current collector, and a detection output of the detector. Since the switch is configured to switch and supply power to the corresponding partial rail, the power can be switched and supplied to any partial rail with a simple configuration.
Furthermore, since an electrical signal is output from the crane device to the partial rail with which the current collector is in electrical contact, the electrical contact between the partial rail and the current collector can be detected very easily and accurately. be able to.
次に、図12を参照して、本発明の第2の実施の形態について説明する。
第1の実施の形態では、カバー3に設けた集電子4でカバー3を給電レール1上に支持する車輪を兼用した場合について説明した。本実施の形態では、集電子4と車輪とを別個に設けた場合を例として説明する。 [Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
In the first embodiment, a case has been described in which the
集電子43の位置、すなわち集電点Pは、カバー3の両端点Eからそれぞれ保護距離Wだけ離れている。この際、部分レール11X,11Yのレール長Lは、保護距離W以下となっている。
なお、本実施の形態におけるクレーン給電システムの他の構成については、第1の実施の形態と同様であり、ここでの詳細な説明は省略する。 On the other hand, the
The position of the
In addition, about the other structure of the crane electric power feeding system in this Embodiment, it is the same as that of 1st Embodiment, and detailed description here is abbreviate | omitted.
次に、図13を参照して、本発明の第2の実施の形態にかかるクレーン給電システムの給電動作について説明する。 [Operation of Second Embodiment]
Next, with reference to FIG. 13, the power feeding operation of the crane power feeding system according to the second embodiment of the present invention will be described.
このような集電子43の移動に伴って、部分レール11Xには、時刻T1から時刻T2までの期間だけ給電され、部分レール11Yには、時刻T2から時刻T3までの期間だけ給電される。 When the
With such movement of the
集電子43は、時刻T1,T2に、それぞれ部分レール11X,11Yと最初に接触しているが、これら部分レールのレール長Lはカバー3の集電点Pから端点Eまでの保護距離W以下である。このため、時刻T1,T2において、集電子43が部分レールの一端に最初に接触した時点では、その部分レールの他端はすでにカバー3の下に隠れていることになる。 At this time, in the
The
したがって、部分レール11X,11Yに対する給電開始および給電停止は、それぞれの部分レール11X,11Yがカバー3の下に隠れている状態で行われることになる。このため、給電されている部分レールは、常にカバー3の下に隠れていることになり、給電されている部分レールによるカバー3により感電は抑止される。 On the other hand, the
Accordingly, the power supply start and power supply stop for the
このように、本実施の形態は、クレーン装置の集電子は、保護区間Sの中間部に集電点Pを有し、クレーン装置のカバーで、集電点Pと保護区間Sの端点Eとの間に、給電レール上を転動する車輪を回動自在に支持するようにしたので、集電点をカバーの中央付近に配置した場合でも、カバーを給電レール上方に安定して支持することができる。
このため、部分レールのレール長を保護区間Sの1/2に近づけることができ、部分レールおよび部分レールごとに設けられた切替器の数を最小限に抑えることができ、クレーン給電システムの設備規模および設備コストを削減することが可能となる。 [Effect of the second embodiment]
Thus, in this embodiment, the current collector of the crane apparatus has a current collection point P in the middle part of the protection section S, and the power collection point P and the end point E of the protection section S are During this period, the wheels that roll on the power supply rail are supported rotatably, so that the cover can be stably supported above the power supply rail even when the current collecting point is located near the center of the cover. Can do.
For this reason, the rail length of a partial rail can be brought close to 1/2 of the protection section S, the number of switching devices provided for each partial rail and each partial rail can be minimized, and the equipment of the crane feeding system Scale and equipment costs can be reduced.
以上の各実施の形態では、給電レール1として2条のレールを用いる場合を例として説明したが、これに限定されるものではない。例えば、電源電力として3相交流電源を用いる場合には、前述した図5や図7において、給電レールを3条並行に条設すればよい。
また、給電レール1は、地上の接地電位と電気的に絶縁されていることを前提として説明したが、いずれか1条を地上の接地電位と電気的に接続してもよい。これにより、電源装置21と部分レール11の間を接続する一部あるいはすべての区間において、配線ケーブルの本数を削減することが可能となる。 [Extended embodiment]
In each of the above embodiments, the case where two rails are used as the
Moreover, although the description has been made on the assumption that the
また、各実施の形態では、図3あるいは図7に示したように、地上Gに設けた溝12内に給電レール1を条設した場合を例として説明したが、これに限定されるものではない。例えば、レーンに立ち入る移動体が人のみの場合、あるいは多少の突起を乗り越えて移動できる車両や装置がレーンに立ち入る場合には、地上Gの地面にそのまま給電レール1を条設してもよい。 Moreover, in each embodiment, as shown in FIG. 3 or FIG. 7, the
In each embodiment, as shown in FIG. 3 or FIG. 7, the case where the
Claims (7)
- 外部から供給された電源電力により動作するクレーン装置と、
このクレーン装置が走行するレーンに沿って条設された給電レールと、
この給電レールに対して電源電力を供給する給電部と
を備え、
前記クレーン装置は、前記給電レールと電気的に接触することにより前記給電部から供給された電源電力を集電する集電子と、当該集電点を含む前記給電レールの一部を保護区間としてその上方から覆うことにより、当該保護区間での前記給電レールに対する感電を保護する感電保護部を有し、
前記給電レールは、互いに電気的に絶縁された複数の部分レールの列からなり、
前記部分レールは、前記保護区間の端点から前記集電点までの保護距離以下のレール長を有し、
前記給電部は、前記部分レールのうち前記集電子と電気的に接触している部分レールに対してのみ電源電力を供給する
ことを特徴とするクレーン給電システム。 A crane device that operates with power supplied from outside;
A power supply rail provided along the lane in which the crane device travels;
A power supply section for supplying power to the power supply rail,
The crane device has a current collector that collects power supplied from the power feeding unit by making electrical contact with the power feeding rail, and a part of the power feeding rail including the current collecting point as a protection section. By covering from above, it has an electric shock protection part for protecting electric shock to the power supply rail in the protection section,
The feed rail is composed of a plurality of rows of partial rails that are electrically insulated from each other,
The partial rail has a rail length equal to or less than a protection distance from an end point of the protection section to the current collecting point,
The power feeding unit supplies power to only a partial rail that is in electrical contact with the current collector of the partial rails. - 請求項1に記載のクレーン給電システムにおいて、
前記給電部は、前記部分レールから得られた電気信号に基づいて当該部分レールと前記集電子との電気的接触を検出する検出器と、この検出器の検出出力に基づいて対応する部分レールに対して電源電力を切替供給する切替器とを有する
ことを特徴とするクレーン給電システム。 In the crane electric power feeding system of Claim 1,
The power feeding unit includes a detector that detects electrical contact between the partial rail and the current collector based on an electrical signal obtained from the partial rail, and a corresponding partial rail based on a detection output of the detector. A crane power supply system comprising: a switch for switching power supply to the power supply. - 請求項2に記載のクレーン給電システムにおいて、
前記クレーン装置は、前記集電子が電気的に接触している部分レールに対して前記電気信号を出力する
ことを特徴とするクレーン給電システム。 In the crane electric power feeding system of Claim 2,
The crane power supply system, wherein the crane device outputs the electrical signal to a partial rail with which the current collector is in electrical contact. - 請求項1に記載のクレーン給電システムにおいて、
前記給電レールは、前記レーンのうち任意の移動体が進入する区間においてのみ、前記部分レールの列からなる
ことを特徴とするクレーン給電システム。 In the crane electric power feeding system of Claim 1,
The power feeding rail is composed of a row of the partial rails only in a section in which an arbitrary moving body enters the lane. - 請求項1に記載のクレーン給電システムにおいて、
前記集電子は、前記感電保護部に回動自在に支持されて前記給電レール上を転動するとともに、当該給電レールとの物理的接触点を集電点として当該給電レールから電源電力を集電する車輪からなる
ことを特徴とするクレーン給電システム。 In the crane electric power feeding system of Claim 1,
The current collector is rotatably supported by the electric shock protection unit and rolls on the power supply rail, and collects power from the power supply rail using a physical contact point with the power supply rail as a current collection point. A crane power feeding system characterized by comprising wheels that perform. - 請求項1に記載のクレーン給電システムにおいて、
前記集電子は、前記保護区間の中間部に集電点を有し、
前記感電保護部は、前記集電点と前記保護区間の端点との間に、前記給電レール上を転動する車輪を回動自在に支持する
ことを特徴とするクレーン給電システム。 In the crane electric power feeding system of Claim 1,
The current collector has a current collecting point at an intermediate portion of the protection section,
The electric shock protection unit rotatably supports a wheel that rolls on the power supply rail between the current collection point and an end point of the protection section. - 外部から供給された電源電力により動作するクレーン装置と、このクレーン装置が走行するレーンに沿って条設された給電レールと、この給電レールに対して電源電力を供給する給電部とを備えるクレーン給電システムで用いられるクレーン給電方法であって、
前記クレーン装置により、集電子を介して前記給電レールと電気的に接触することにより前記給電部から供給された電源電力を集電するステップと、
前記クレーン装置により、前記集電点を含む前記給電レールの一部を保護区間としてその上方から覆うことにより、当該保護区間での前記給電レールに対する感電を保護するステップと、
前記保護区間の端点から前記集電点までの保護距離以下のレール長を有し、互いに電気的に絶縁されて条設されることにより前記給電レールを構成する複数の部分レールのうち、前記集電子と電気的に接触している部分レールに対してのみ前記給電部から電源電力を供給するステップと
を備えることを特徴とするクレーン給電方法。 Crane power supply comprising a crane device that operates by power supply supplied from outside, a power supply rail provided along a lane in which the crane device travels, and a power supply unit that supplies power to the power supply rail A crane power feeding method used in the system,
Collecting the power supplied from the power supply unit by making electrical contact with the power supply rail via the current collector by the crane device; and
Protecting electric shock to the power supply rail in the protection section by covering a part of the power supply rail including the current collection point from above as a protection section by the crane device;
Of the plurality of partial rails that have the rail length that is equal to or less than the protection distance from the end point of the protection section to the current collection point and that are electrically insulated from each other to form the power supply rail, Supplying the power from the power feeding unit only to the partial rail that is in electrical contact with the electrons.
Priority Applications (2)
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KR1020107021220A KR101290242B1 (en) | 2008-03-27 | 2009-03-27 | Crane feed system |
CN200980110897.0A CN101980945B (en) | 2008-03-27 | 2009-03-27 | Crane feed system and method |
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JP2008-082984 | 2008-03-27 | ||
JP2008082984A JP5319147B2 (en) | 2008-03-27 | 2008-03-27 | Crane power feeding system and method |
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WO2009119791A1 true WO2009119791A1 (en) | 2009-10-01 |
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JP (1) | JP5319147B2 (en) |
KR (1) | KR101290242B1 (en) |
CN (1) | CN101980945B (en) |
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JP5605950B2 (en) * | 2011-03-31 | 2014-10-15 | 三井造船株式会社 | container yard |
JP6391932B2 (en) * | 2013-12-12 | 2018-09-19 | キヤノンメディカルシステムズ株式会社 | Medical diagnostic equipment |
CN107458970B (en) * | 2016-06-06 | 2020-07-07 | 台湾积体电路制造股份有限公司 | Overhead traveling crane conveying system, conveying vehicle of overhead traveling crane conveying system and control method |
KR102060650B1 (en) * | 2017-10-24 | 2020-02-11 | 문양식 | Tripper car with two-way movement |
KR102060654B1 (en) * | 2017-10-24 | 2019-12-30 | 문양식 | Tripper car that can remove residues |
KR102060668B1 (en) * | 2017-10-24 | 2019-12-30 | 문양식 | Tripper car that guides the drop feed |
CN111147558B (en) * | 2019-12-16 | 2022-07-19 | 上海浦帮机电制造有限公司 | Zero-line-free inductance power taking system |
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JPS62181929A (en) * | 1986-02-06 | 1987-08-10 | Tokyu Constr Co Ltd | Structure of track |
JP2001163088A (en) * | 1999-10-25 | 2001-06-19 | Alstom | Static system feeding current to electric rolling stock via ground, and electric rolling stock intended to be fed by such feeding system |
JP2003137494A (en) * | 2001-11-02 | 2003-05-14 | Mitsui Eng & Shipbuild Co Ltd | Feeder system of tire type crane |
Family Cites Families (4)
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JPH0350142Y2 (en) * | 1985-10-27 | 1991-10-25 | ||
CN2661665Y (en) * | 2003-11-03 | 2004-12-08 | 彭浩林 | Continuous type safety power transmission guide rail |
CN101104498A (en) * | 2006-07-14 | 2008-01-16 | 上海振华港口机械(集团)股份有限公司 | Electric tyre type gantry container crane using aerial slide wire |
CN200951934Y (en) * | 2006-08-24 | 2007-09-26 | 上海振华港口机械(集团)股份有限公司 | Tyre type gantry crane for container using urban electricity supply |
-
2008
- 2008-03-27 JP JP2008082984A patent/JP5319147B2/en active Active
-
2009
- 2009-03-27 WO PCT/JP2009/056251 patent/WO2009119791A1/en active Application Filing
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62181929A (en) * | 1986-02-06 | 1987-08-10 | Tokyu Constr Co Ltd | Structure of track |
JP2001163088A (en) * | 1999-10-25 | 2001-06-19 | Alstom | Static system feeding current to electric rolling stock via ground, and electric rolling stock intended to be fed by such feeding system |
JP2003137494A (en) * | 2001-11-02 | 2003-05-14 | Mitsui Eng & Shipbuild Co Ltd | Feeder system of tire type crane |
Also Published As
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KR101290242B1 (en) | 2013-07-30 |
KR20100124788A (en) | 2010-11-29 |
CN101980945B (en) | 2013-04-10 |
JP5319147B2 (en) | 2013-10-16 |
JP2009234723A (en) | 2009-10-15 |
CN101980945A (en) | 2011-02-23 |
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