JP2022053783A - Frame transport vehicle - Google Patents

Abstract

To provide a frame transport vehicle capable of transporting a frame with plates without mounting wheels to the frame on which the plates are leaned and loaded.SOLUTION: A frame transport vehicle 1 includes: a connection mechanism 11 to which a traction vehicle is connected; a hydraulic circuit connection part 12 to be connected to a hydraulic circuit provided in the traction vehicle; a traveling device 13 constituted of wheels 13A, 13B; a support mechanism 14 for supporting a frame on which plates are leaned and loaded; and a lifting and lowering hydraulic actuator 16 for lifting and lowering the support mechanism 14. The support mechanism 14 can be switched between a frame-lifted state and a frame-lowered state in accordance with hydraulic pressure supplied to the lifting and lowering hydraulic actuator 16, and is provided with accumulators 18A, 18B that restrict fluctuation in hydraulic pressure inside the lifting and lowering hydraulic actuator 16, in an oil passage connecting the hydraulic circuit connection part 12 to the lifting and lowering hydraulic actuator 16.SELECTED DRAWING: Figure 3

Description

The present invention relates to a gantry carrier for transporting a gantry on which a plate is placed against it.

There is known a plate mount on which a glass plate, which is a plate, is placed against it. Further, a transport trolley is configured by providing wheels on the gantry, and the gantry is transported together with the glass plate in the factory premises by towing the transport trolley on which the glass plate is placed (for example, Patent Documents). 1).

Japanese Unexamined Patent Publication No. 2014-144704

However, if the wheels provided on the gantry are small, there is an inconvenience that it becomes difficult to carry a heavy plate. Further, if the wheels provided on the gantry are large, there is an inconvenience that the transport trolley becomes large.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pedestal carrier capable of transporting a pedestal together with a plate without providing wheels on the pedestal on which the plate is erected.

In order to solve the above problems, the gantry carrier according to claim 1 is composed of a connecting mechanism to which the traction vehicle is connected, a hydraulic circuit connection portion connected to the hydraulic circuit included in the traction vehicle, and wheels. It is provided with a traveling device, a support mechanism for supporting a pedestal on which a plate is leaned, and a hydraulic actuator for raising and lowering the support mechanism, and the support mechanism is hydraulic pressure supplied to the hydraulic actuator for raising and lowering. The pedestal can be switched between a state in which the pedestal is lifted so that the pedestal does not touch the ground and a state in which the pedestal is lowered so that the pedestal touches the ground. The oil passage connected to the actuator is provided with an accumulator that suppresses fluctuations in the hydraulic pressure in the lifting hydraulic actuator.

The gantry carrier according to claim 2 is the gantry carrier according to claim 1, characterized in that it includes a plurality of the accumulators having different hydraulic pressures.

The gantry carrier according to claim 3 is the gantry carrier according to claim 1 or 2, for a seismic control mechanism that controls the plate against the gantry and a seismic control mechanism that operates the seismic control mechanism. Further provided with a hydraulic actuator, the vibration control mechanism presses the plate against the gantry and presses the plate against the gantry according to the hydraulic pressure supplied to the hydraulic actuator for vibration control. Another accumulator that suppresses fluctuations in the hydraulic pressure in the vibration control hydraulic actuator is provided in the oil passage that connects the hydraulic circuit connection portion and the vibration control hydraulic actuator. It is characterized by being.

Further, in order to solve the above problem, the gantry carrier according to claim 4 is composed of a connecting mechanism to which the traction vehicle is connected, a hydraulic circuit connection portion connected to the hydraulic circuit included in the traction vehicle, and wheels. A traveling device to be mounted, a support mechanism for supporting a pedestal on which a plate is erected, a vibration control mechanism for controlling the plate against the pedestal, and a hydraulic actuator for raising and lowering the support mechanism. A seismic control hydraulic actuator for operating the seismic control mechanism is provided, and the support mechanism is in a state where the gantry is lifted so that the gantry does not touch the ground in response to the hydraulic pressure supplied to the elevating hydraulic actuator. The gantry is configured to be switchable to a state in which the gantry is lowered so that the gantry is in contact with the ground. It is configured to be switchable between a state in which the plate is pressed against the gantry and a state in which the plate is not pressed against the gantry. It is characterized by being provided with an accumulator that suppresses fluctuations in the hydraulic pressure inside.

The mount carrier according to claim 5 is a detection for detecting whether or not the vibration control mechanism is pressing the plate against the mount in the mount carrier according to claim 3 or 4. It is characterized by further including a device and a display device for displaying the detection result by the detection device.

According to the present invention, it is possible to provide a pedestal carrier capable of transporting a pedestal together with a plate without providing wheels on the pedestal on which the plate is placed.

It is a schematic diagram which shows the transport mode of the gantry by the gantry carrier which concerns on one Embodiment of this invention. It is a schematic diagram which shows the transport mode of the gantry by the gantry carrier which concerns on the same embodiment. It is a side view of the gantry carrier which concerns on the same embodiment. It is a front view of the gantry carrier which concerns on the same embodiment. It is a block diagram which shows the schematic structure of the gantry carrier which concerns on the same embodiment. (A) and (B) are schematic views which show the transportation work procedure of a gantry. (A) and (B) are block diagrams showing a schematic configuration of a gantry carrier according to a modified example.

A gantry carrier 1 (hereinafter referred to as “transporter 1”) according to an embodiment embodying the present invention will be described with reference to the drawings. The front-back direction X, the left-right direction Y, and the up-down direction Z indicated by the arrows in the figure are directions orthogonal to each other.

1 and 2 are views showing a mode of transporting the gantry 8 by the carrier 1 and the forklift 5. Note that FIG. 2 is a view of the carrier 1 of FIG. 1 as viewed from the front, and the forklift 5 and the like are not shown.

As shown in FIGS. 1 and 2, the transport vehicle 1 is a towed vehicle that cannot travel on its own, and when the forklift 5 travels, the transport vehicle 1 transports the gantry 8 on which the plate P is leaned against. do. The plate P is one or a plurality of glass plates formed of glass.

The forklift 5 is a towing vehicle that pulls the carrier 1. The forklift 5 includes a fork 51 to which the carrier 1 is connected, a hydraulic circuit 52 for supplying hydraulic oil to the outside, an operating device 53 operated by an operator (not shown), and the like. The operating device 53 is composed of, for example, a plurality of operating levers.

The gantry 8 includes an inclined table 81 on which the plate P is leaned against, and legs 82 provided at the lower end of the inclined table 81. The leg portion 82 extends in the left-right direction Y, and a non-grounded surface 82A formed so as not to touch the ground is provided at the right end portion and the left end portion of the leg portion 82. In the present embodiment, the plurality of legs 82 are provided at intervals in the front-rear direction X.

FIG. 3 is a right side view of the carrier 1, and FIG. 4 is a front view of the carrier 1.
As shown in FIGS. 3 and 4, the carrier 1 has a vehicle body structure 10, a connecting mechanism 11, a hydraulic circuit connecting portion 12, a traveling device 13, a support mechanism 14, a vibration control mechanism 15, and an ascending / descending mechanism. The hydraulic actuator 16 for vibration control, the hydraulic actuator 17 for vibration control, and a plurality of accumulators 18A, 18B, 19 are provided.

The vehicle body structure 10 includes a right main frame 10A and a left main frame 10B provided at intervals in the left-right direction Y, a rear frame 10C connecting the rear ends of the main frames 10A and 10B, and a support mechanism 14. It is composed of an upper frame 10D or the like provided so as to cover it.

The connecting mechanism 11 is a towing vehicle connecting portion to which the forklift 5 is connected. The connecting mechanism 11 is connected to the rear end portion of the vehicle body structure 10 and has a fork insertion port 11A into which the fork 51 is inserted.

The hydraulic circuit connecting portion 12 is composed of an oil passage connecting member connected to the hydraulic circuit 52. The hydraulic actuators 16 and 17 are connected to the hydraulic circuit 52 via the hydraulic circuit connecting portion 12, and hydraulic pressure is supplied from the hydraulic circuit connecting portion 12 to the hydraulic actuators 16 and 17.

The traveling device 13 is provided on each of the right side portion and the left side portion of the carrier 1. Specifically, the traveling device 13 is provided below each of the main frames 10A and 10B. The traveling device 13 is composed of wheels 13A and 13B with tires that roll on the road surface, and wheel supports 13C that rotatably support the wheels 13A and 13B, respectively.

The support mechanism 14 is provided between the two traveling devices 13 provided on the right side portion and the left side portion of the carrier 1 (that is, between the main frames 10A and 10B), and is provided between the main frames 10A of the vehicle body structure 10. , 10B is connected. The support mechanism 14 supports the gantry 8 from below. The support mechanism 14 includes a right frame 14A arranged on the right side of the gantry 8 and a left frame 14B arranged on the left side of the gantry 8. A claw 14C projecting to the left is provided at the lower end of the right frame 14A, and a claw 14D projecting to the right is provided at the lower end of the left frame 14B. The claw 14C supports the right end of the gantry 8 from below, and the claw 14D supports the left end of the gantry 8 from below. Further, a movement restricting piece 14E projecting upward is provided at the rear end portion of the claws 14C and 14D. The movement restricting piece 14E regulates the relative movement of the gantry 8 with respect to the support mechanism 14 in the front-rear direction X by coming into contact with the gantry 8. The support mechanism 14 switches between a state in which the gantry 8 is lifted so that the gantry 8 does not touch the ground and a state in which the gantry 8 is lowered so that the gantry 8 touches the ground, according to the hydraulic pressure supplied to the lifting hydraulic actuator 16. It is configured to be possible.

The vibration control mechanism 15 is provided at four locations corresponding to the right front portion, the left front portion, the right rear portion, and the left rear portion of the gantry 8, and is connected to the main frames 10A and 10B of the vehicle body structure 10. The vibration control mechanism 15 controls the plate P with respect to the gantry 8. Specifically, the vibration control mechanism 15 provided at the position corresponding to the right front part and the right rear part of the gantry 8 controls the vibration by pressing the plate P leaning against the right side of the gantry 8 from the right side, and controls the gantry. The vibration control mechanism 15 provided at the positions corresponding to the left front portion and the left rear portion of 8 controls the vibration by pressing the plate P leaning against the left side portion of the gantry 8 from the left side. The vibration control mechanism 15 includes a pad 15A for pressing the plate P against the gantry 8 and an arm 15B (see FIG. 2) for supporting the pad 15A, respectively. The vibration control mechanism 15 is configured to be switchable between a state in which the plate P is pressed against the gantry 8 and a state in which the plate P is not pressed against the gantry 8 according to the hydraulic pressure supplied to the vibration control hydraulic actuator 17. Has been done.

The lifting hydraulic actuator 16 is a hydraulic cylinder that raises and lowers the support mechanism 14, and expands and contracts according to the hydraulic pressure supplied from the hydraulic circuit connection portion 12. The lifting hydraulic actuator 16 connects the traveling device 13 and the support mechanism 14, and when the lifting hydraulic actuator 16 is extended, the support mechanism 14 is raised, and when the lifting hydraulic actuator 16 is contracted, the support mechanism 14 is lowered. It is configured as follows. When the lifting hydraulic actuator 16 raises and lowers the support mechanism 14, the vehicle body structure 10 and the vibration control mechanism 15 are configured to move up and down together with the support mechanism 14.

The vibration control hydraulic actuator 17 is a hydraulic cylinder that operates the vibration control mechanism 15, and expands and contracts according to the hydraulic pressure supplied from the hydraulic circuit connection portion 12. The vibration control hydraulic actuator 17 connects the support mechanism 14 and the vibration control mechanism 15, and when the vibration control hydraulic actuator 17 extends, the vibration control mechanism 15 presses the plate P against the gantry 8 for vibration control. The vibration control mechanism 15 is configured to be separated from the plate P when the hydraulic actuator 17 contracts.

The accumulators 18A and 18B are provided in an oil passage connecting the hydraulic circuit connecting portion 12 and the lifting hydraulic actuator 16. The accumulators 18A and 18B suppress fluctuations in the hydraulic pressure in the lifting hydraulic actuator 16. The accumulators 18A and 18B have different hydraulic pressures, the accumulator 18A is configured to effectively absorb the hydraulic pressure fluctuation at low pressure, and the accumulator 18B is configured to effectively absorb the hydraulic pressure fluctuation at high pressure. Has been done.

The accumulator 19 is provided in an oil passage connecting the hydraulic circuit connection portion 12 and the vibration control hydraulic actuator 17. The accumulator 19 suppresses fluctuations in the hydraulic pressure in the vibration control hydraulic actuator 17.

FIG. 5 is a block diagram showing a schematic configuration of the carrier 1.
As shown in FIG. 5, the carrier 1 includes a control valve 21, an electric circuit connection portion 22, a detection device 23, a display device 24, and a lighting device 25.

The control valve 21 is provided in an oil passage connecting the hydraulic circuit connecting portion 12 and the hydraulic actuators 16 and 17. The control valve 21 controls the hydraulic pressure in each of the hydraulic actuators 16 and 17 by controlling the hydraulic oil supplied to the hydraulic actuators 16 and 17 and the hydraulic oil discharged from the hydraulic actuators 16 and 17. The control valve 21 is configured to operate according to the operation of the operating device 53.

The accumulators 18A and 18B are provided in an oil passage connecting the control valve 21 and the hydraulic actuator 16 for raising and lowering. In the present embodiment, one accumulator 18A and one accumulator 18B are connected to an oil passage connected to two lifting hydraulic actuators 16 provided on the right side portion and the left side portion of the carrier 1.

The accumulator 19 is provided in an oil passage connecting the control valve 21 and the vibration control hydraulic actuator 17. In the present embodiment, one accumulator 19 is connected to the oil passages connected to the four vibration control hydraulic actuators 17 provided at the four locations of the carrier 1.

The electric circuit connecting portion 22 is composed of an electric wire connecting member connected to an electric circuit (not shown) included in the forklift 5. The display device 24 and the lighting device 25 are connected to the electric circuit of the forklift 5 via the electric circuit connection unit 22, and power is supplied from the electric circuit connection unit 22 to the display device 24 and the lighting device 25.

The detection device 23 detects whether or not the vibration control mechanism 15 is in a state of pressing the plate P against the gantry 8. Specifically, the detection device 23 is composed of a sensor whose output changes depending on whether or not the pad 15A is in contact with the plate P. The detection device 23 detects that the vibration control mechanism 15 is pressing the plate P against the gantry 8 when the pad 15A is in contact with the plate P. Further, the detection device 23 detects that the vibration control mechanism 15 is not pressing the plate P against the gantry 8 when the pad 15A is separated from the plate P. In the present embodiment, the detection device 23 is composed of a plurality of sensors provided in each of the vibration control mechanisms 15 so that the states of the four vibration control mechanisms 15 can be individually detected.

The display device 24 displays the detection result by the detection device 23. Specifically, for example, the display device 24 is configured to emit red light when it is detected that the vibration control mechanism 15 is pressing the plate P against the gantry 8. .. Further, for example, the display device 24 is configured to emit green light when it is detected that the vibration control mechanism 15 is not pressing the plate P against the gantry 8. In the present embodiment, the display device 24 is composed of a plurality of lamps so that the detection results of the four detection devices 23 can be individually displayed.

The lighting device 25 is a lighting device that illuminates the surroundings to support work in a dark place. The lighting and extinguishing of the lighting device 25 is configured to be linked with the lighting and extinguishing of the lighting device (not shown) included in the forklift 5.

Next, a work procedure for transporting the plate P will be described with reference to FIG. The following operations are performed by the operator on the forklift 5 connected to the carrier 1 operating the operating device 53.

The forklift 5 is advanced in a state where the claws 14C and 14D of the carrier 1 are lower than the non-contact patch 82A of the leg 82, and the claws 14C and 14D are connected to the ground and the non-contact patch 82A as shown in FIG. 6 (A). When the claws 14C and 14D are located under all the legs 82, the forklift 5 is stopped running. Next, as shown in FIG. 6B, the support mechanism 14 is raised, and the gantry 8 is lifted by the claws 14C and 14D. At this time, by raising the fork 51 at the same time as raising the support mechanism 14, the gantry 8 is prevented from tilting in the front-rear direction X. Next, the vibration control mechanism 15 is operated as shown by the broken line in FIG. 6B, and the plate P is pressed against the gantry 8 by the pad 15A. Then, with the plate P pressed against the gantry 8 by the pads 15A of the four vibration control mechanisms 15, the forklift 5 is moved backward to pull the carrier 1. In this way, the carrier 1 towed by the forklift 5 carries the gantry 8 and the plate P leaning against the gantry 8.

When the plate P is transported to the destination, the running of the forklift 5 is stopped, the vibration control mechanism 15 is operated, and the plate P is not pressed against the gantry 8 as shown by the solid line in FIG. 6 (B). The pad 15A is separated from the plate P. Then, as shown in FIG. 6A, the support mechanism 14 is lowered to ground the gantry 8. At this time, by lowering the fork 51 at the same time as lowering the support mechanism 14, the gantry 8 is prevented from tilting in the front-rear direction X. Then, the forklift 5 is moved backward so as to pull out the claws 14C and 14D from between the ground and the non-contact patch 82A.

The following effects can be obtained in this embodiment.
(1) The carrier 1 can lift the pedestal 8 on which the plate P stands upright by raising and lowering the support mechanism 14 by the lifting hydraulic actuator 16, and the forklift 5 can lift the gantry 8 while the pedestal 8 is lifted. By being towed, the gantry 8 can be transported. Therefore, the gantry 8 can be transported together with the plate P without providing wheels on the gantry 8.

(2) Since the transport vehicle 1 includes accumulators 18A and 18B that suppress fluctuations in the hydraulic pressure in the lifting hydraulic actuator 16, vibration of the support mechanism 14 accompanying the traveling of the transport vehicle 1 can be suppressed. Therefore, as compared with the configuration in which the transport vehicle 1 does not include the accumulators 18A and 18B, it is possible to prevent the plate P from cracking during transportation.

(3) Since the transport vehicle 1 includes an accumulator 19 that suppresses fluctuations in the hydraulic pressure in the vibration control hydraulic actuator 17, it is possible to suppress vibration of the vibration control mechanism 15 that accompanies the traveling of the transport vehicle 1. Therefore, as compared with the configuration in which the transport vehicle 1 does not include the accumulator 19, it is possible to prevent the plate P from cracking during transportation.

(4) Since the transport vehicle 1 includes a display device 24 that displays the detection result by the detection device 23, the operator refers to the display device 24 and is in a state where the plate P is pressed against the gantry 8. It is possible to confirm whether or not it is.

The present invention is not limited to the above embodiment, and the above configuration can be changed. For example, the following changes can be made and implemented, or the following changes can be combined and implemented.

-The accumulator 19 may be omitted. That is, as shown in FIG. 7A, the accumulators 18A and 18B can be configured so that only the hydraulic fluctuation in the lifting hydraulic actuator 16 among the hydraulic actuators 16 and 17 is suppressed.

-The accumulators 18A and 18B may be omitted. That is, as shown in FIG. 7B, the accumulator 19 can be configured so that only the hydraulic pressure fluctuation in the vibration control hydraulic actuator 17 among the hydraulic actuators 16 and 17 is suppressed.

-Instead of the accumulators 18A and 18B, one accumulator may be provided in the oil passage connecting the hydraulic circuit connection portion 12 and the lifting hydraulic actuator 16. Further, instead of the accumulator 19, a plurality of accumulators having different hydraulic pressures may be provided in the oil passage connecting the hydraulic circuit connection portion 12 and the vibration control hydraulic actuator 17.

The lifting of the support mechanism 14 by the lifting hydraulic actuator 16 may be configured to be automatically controlled according to a predetermined program without being controlled according to the operation of the operating device 53. Further, the operation of the vibration control mechanism 15 by the vibration control hydraulic actuator 17 may be configured to be automatically controlled according to a predetermined program without being controlled according to the operation of the operation device 53.

-The number and arrangement of the vibration control mechanisms 15 can be changed as appropriate. For example, the vibration control mechanism 15 may be provided at two locations corresponding to the right central portion and the left central portion of the gantry 8. Further, the vibration control mechanism 15 can be omitted.

-It can also be configured to tow the carrier 1 by a vehicle other than the forklift 5. That is, the configuration of the connecting mechanism 11 can be changed as appropriate, and the towing vehicle is not limited to the forklift 5.

-The transport vehicle 1 may transport a gantry 8 on which a plate other than a glass plate is leaned against. That is, the carrier 1 of the present invention may be used to transport a plate formed of other than glass.

1 Mount carrier 5 Forklift (towing vehicle)
8 Stand 11 Connection mechanism 12 Hydraulic circuit connection 13 Traveling device 14 Support mechanism 15 Seismic control mechanism 16 Elevating hydraulic actuator 17 Seismic control hydraulic actuator 18A, 18B Accumulator 19 Accumulator (other accumulator)
23 Detection device 24 Display device P Plate X Front-back direction Y Left-right direction Z Up-down direction

In order to solve the above problems, the gantry carrier according to claim 1 is composed of a connecting mechanism to which a forklift, which is a towing vehicle, is connected, a hydraulic circuit connecting portion connected to a hydraulic circuit included in the forklift , and wheels. The traveling device is provided, a support mechanism for supporting the pedestal on which the plate is leaned, and a hydraulic actuator for raising and lowering the support mechanism, and the connecting mechanism is inserted with a fork provided by the forklift. The support mechanism has a fork insertion port, and the support mechanism lifts the gantry so that the gantry does not touch the ground according to the hydraulic pressure supplied to the lifting hydraulic actuator, and the pedestal touches the ground. It is configured to be switchable to the state where the gantry is lowered, and an accumulator that suppresses fluctuations in the hydraulic pressure in the lifting hydraulic actuator is provided in the oil passage connecting the hydraulic circuit connection portion and the lifting hydraulic actuator. It is characterized by being.
Further, the gantry carrier according to claim 2 includes a connecting mechanism to which a forklift, which is a towing vehicle, is connected, a hydraulic circuit connecting portion connected to a hydraulic circuit included in the forklift, and a traveling device composed of wheels. , Provided in the oil passage connecting the support mechanism that supports the pedestal on which the plate is leaned, the hydraulic actuator for raising and lowering the support mechanism, and the hydraulic circuit connection portion and the hydraulic actuator for raising and lowering. The control valve comprises a control valve for controlling the hydraulic pressure in the elevating hydraulic actuator, the control valve is configured to operate according to the operation of the operating device included in the forklift, and the support mechanism is the elevating hydraulic actuator. Depending on the hydraulic pressure supplied to the pedestal, the pedestal can be switched between a state in which the pedestal is lifted so that the pedestal does not touch the ground and a state in which the pedestal is lowered so that the pedestal touches the ground. An accumulator that suppresses fluctuations in the hydraulic pressure in the lifting hydraulic actuator is provided in the oil passage that connects to the lifting hydraulic actuator.

The gantry carrier according to claim 3 is the gantry carrier according to claim 1 or 2 , characterized in that it includes a plurality of the accumulators having different hydraulic pressures.

The gantry carrier according to claim 4 is the gantry carrier according to any one of claims 1 to 3 , wherein the gantry carrier has a seismic control mechanism for controlling the plate against the gantry and the seismic control mechanism. Further provided with an operation hydraulic hydraulic actuator for vibration control, the vibration control mechanism presses the plate against the gantry and against the gantry according to the hydraulic pressure supplied to the hydraulic pressure actuator for vibration control. In addition to suppressing fluctuations in the hydraulic pressure in the vibration control hydraulic actuator, the oil passage connecting the hydraulic circuit connection portion and the vibration control hydraulic actuator is configured to be switchable to a state in which the plate is not pressed. It is characterized by being provided with an accumulator of.

Further, in order to solve the above problems, the gantry carrier according to claim 5 has a connecting mechanism to which a forklift, which is a towing vehicle, is connected, a hydraulic circuit connecting portion connected to a hydraulic circuit included in the forklift , and wheels. A traveling device composed of a traveling device, a support mechanism that supports a pedestal on which a plate is erected, a vibration control mechanism that controls the plate against the pedestal, and a hydraulic actuator for raising and lowering the support mechanism. And a hydraulic hydraulic actuator for vibration control that operates the vibration control mechanism, the connection mechanism has a fork insertion port into which a fork included in the fork lift is inserted, and the support mechanism is the hydraulic actuator for raising and lowering. According to the hydraulic pressure supplied to the gantry, the gantry can be switched between a state in which the gantry is lifted so that the gantry does not touch the ground and a state in which the gantry is lowered so that the gantry touches the ground. According to the hydraulic pressure supplied to the vibration control hydraulic actuator, the hydraulic circuit can be switched between a state in which the plate is pressed against the gantry and a state in which the plate is not pressed against the gantry. An accumulator that suppresses fluctuations in the hydraulic pressure in the seismic control hydraulic actuator is provided in the oil passage that connects the connection portion and the seismic control hydraulic actuator.
The gantry carrier according to claim 6 includes a connecting mechanism to which a forklift, which is a towing vehicle, is connected, a hydraulic circuit connecting portion connected to a hydraulic circuit included in the forklift, and a traveling device composed of wheels. , A support mechanism that supports the pedestal on which the plate stands, a vibration control mechanism that controls the plate against the pedestal, a hydraulic actuator for raising and lowering the support mechanism, and the vibration control mechanism. The hydraulic pressure in the elevating hydraulic actuator and the seismic control provided in the oil passage connecting the hydraulic actuator for vibration control to be operated, the hydraulic circuit connection portion, the hydraulic actuator for elevating, and the hydraulic actuator for seismic control. A control valve for controlling hydraulic pressure in the hydraulic actuator is provided, the control valve is configured to operate according to the operation of an operating device included in the forklift, and the support mechanism is supplied to the elevating hydraulic actuator. Depending on the hydraulic pressure, the gantry can be switched between a state in which the gantry is lifted so that the gantry does not touch the ground and a state in which the gantry is lowered so that the gantry touches the ground. Depending on the hydraulic pressure supplied to the seismic hydraulic actuator, the control valve and the control valve can be switched between a state in which the plate is pressed against the gantry and a state in which the plate is not pressed against the gantry. It is characterized in that an accumulator for suppressing fluctuations in the hydraulic pressure in the seismic control hydraulic actuator is provided in the oil passage connected to the seismic hydraulic actuator.

The gantry carrier according to claim 7 is the gantry carrier according to any one of claims 4 to 6, and whether or not the vibration control mechanism is pressing the plate against the gantry. It is further characterized by further including a detection device for detecting the presence and a display device for displaying the detection result by the detection device.

Claims (5)

A connecting mechanism to which the towing vehicle is connected, and
A hydraulic circuit connection portion connected to the hydraulic circuit provided in the towing vehicle, and
A traveling device composed of wheels and
A support mechanism that supports the pedestal on which the board stands up and
A hydraulic actuator for raising and lowering the support mechanism is provided.
The support mechanism switches between a state in which the gantry is lifted so that the gantry does not touch the ground and a state in which the gantry is lowered so that the gantry touches the ground, according to the hydraulic pressure supplied to the lifting hydraulic actuator. Possible to be configured,
A gantry carrier characterized in that an accumulator that suppresses fluctuations in the hydraulic pressure in the elevating hydraulic actuator is provided in an oil passage that connects the hydraulic circuit connection portion and the elevating hydraulic actuator. The gantry carrier according to claim 1, wherein the accumulators having different hydraulic pressures are provided. A vibration control mechanism that controls the board against the frame, and
Further equipped with a vibration control hydraulic actuator for operating the vibration control mechanism,
The vibration control mechanism is configured to be switchable between a state in which the plate is pressed against the gantry and a state in which the plate is not pressed against the gantry according to the hydraulic pressure supplied to the vibration control hydraulic actuator. Being done
Claim 1 is characterized in that the oil passage connecting the hydraulic circuit connection portion and the vibration damping hydraulic actuator is provided with another accumulator that suppresses fluctuations in the hydraulic pressure in the vibration damping hydraulic actuator. Or the gantry carrier described in 2. A connecting mechanism to which the towing vehicle is connected, and
A hydraulic circuit connection portion connected to the hydraulic circuit provided in the towing vehicle, and
A traveling device composed of wheels and
A support mechanism that supports the pedestal on which the board stands up and
A vibration control mechanism that controls the board against the frame, and
A hydraulic actuator for raising and lowering the support mechanism and
A hydraulic actuator for vibration control that operates the vibration control mechanism is provided.
The support mechanism switches between a state in which the gantry is lifted so that the gantry does not touch the ground and a state in which the gantry is lowered so that the gantry touches the ground, according to the hydraulic pressure supplied to the lifting hydraulic actuator. Possible to be configured,
The vibration control mechanism is configured to be switchable between a state in which the plate is pressed against the gantry and a state in which the plate is not pressed against the gantry according to the hydraulic pressure supplied to the vibration control hydraulic actuator. Being done
A gantry carrier characterized in that an accumulator that suppresses fluctuations in the hydraulic pressure in the vibration control hydraulic actuator is provided in an oil passage that connects the hydraulic circuit connection portion and the vibration control hydraulic actuator. A detection device that detects whether or not the vibration control mechanism is pressing the plate against the gantry, and
The gantry carrier according to claim 3 or 4, further comprising a display device for displaying the detection result by the detection device.

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