JP2741282B2 - Truck transport device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used to transport a non-driving trolley that can travel on the floor side along a fixed path and to move an object to be transferred on the trolley up and down. The present invention relates to a truck transport device.

2. Description of the Related Art Conventionally, in order to transport a non-driven bogie on a fixed route, a hooking piece is vertically provided from the lower portion of the bogie as shown in Japanese Utility Model Publication No. 59-2865, for example. There has been proposed a configuration in which a chain is provided, pusher projections engageable with the hook pieces are provided at a plurality of positions of the chain, and a vehicle support is erected on a bogie. Further, in order to raise and lower the supported transported object, as disclosed in, for example, JP-A-63-265788, a configuration is provided in which a transmission and an engine are supported by a lifter table, and the lifter table is raised and lowered by a lifter. I have.

According to the former type such as the former, since the chain must be provided over the entire length of the fixed path, the entire length of the fixed path becomes complicated, and Must be installed accurately. Furthermore, since the transport pitch of the bogie is based on the mounting pitch of the pusher projections,
A gap is formed between the front and rear ends of these carts, and efficient conveyance cannot be performed. In addition, when the worker on the carriage performs a manual operation on the vehicle while transporting the carriage, the worker cannot safely perform such operations as falling down due to the gap described above. Further, since the vehicle supported by the support is always at a constant level on the vehicle, the operator must take an unreasonable posture depending on the work location. Regarding the level change, it is sufficient to incorporate a lifter such as the latter type into the former type truck, but in this case, since the lifters etc. must be incorporated into all the trucks, the truck becomes large and complicated, and furthermore control Becomes complicated.

The object of the present invention is to install the drive device only on a part of a fixed path, and to solve most of the rest of the complexity, and to perform transport without generating a gap between the carts, An object of the present invention is to provide a bogie transport device that can safely and easily perform an operation from a bogie and that can raise and lower an object to be transported at an arbitrary place without complicating the bogie.

Means for Solving the Problems In order to achieve the above object, a truck transport device of the present invention is provided with a truck drive device for applying a running force to the truck on a side of a fixed route on which the truck can travel, and the truck drive device A brake device that contacts the bogie and applies a braking force smaller than the running force of the bogie driving device is provided on the downstream side of the fixed route from the position of the bogie, and the bogie is connected to the bogie via a non-drive type elevating device. Provided with a transported object support device and a lock device that locks a plurality of raised positions of the lifting device, and a movable body that can travel separately from the carriage along the fixed path below the fixed path. The movable body is provided with an elevating / lowering device which is freely connectable to and detachable from the elevating device and applies an elevating driving force by the connection.

According to the configuration of the present invention, the cart is positioned on the fixed path so as to face the cart driving device. By causing the bogie driving device to act on the bogie side, a large propulsive force is applied to the bogie, and the bogie is conveyed on a fixed route. At this time, the bogie pushes and transports the group of bogies that have stopped before. On the downstream side of the fixed route, since the brake device acts on the bogie, the bogie on the downstream side is conveyed while being subjected to the braking action. The paper is transported in a densely pushed state without causing any problem. As described above, the truck group is densely arranged in series between the truck drive device and the brake device, so that the worker on the truck can perform manual work and walking without falling down. When the bogie reaches a predetermined location on the fixed path, the movable body elevating / lowering device located below the bogie is operated after being connected to the elevating device. Then, by applying a lifting driving force to the lifting device, the lifting device can move upward to raise the support device, thereby raising the level of the transported object with respect to the upper surface of the bogie, and locking the raised position by the locking device. By doing so, manual work corresponding to any desired level can be performed. In addition, by changing the level amount due to the rise at a plurality of places, it is possible to perform manual work at various levels in a fixed route.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a floor-side movable cart having a plurality of wheels 3 freely rotatable below a main body 2. The cart 1 is mounted on a pair of left and right rails 4 via wheels 3, and thus can travel on a fixed path 5. On the upstream side of this fixed path 5,
A carriage loading device 6 and a carriage driving device 7 for main transport are arranged at appropriate intervals in the direction of the fixed route 5, and a truck unloading device 8 is arranged downstream of the fixed route 5,
The brake device 9 is arranged slightly better than this. Here, the trolley carrying-in device 6, the trolley driving device 7, and the trolley carrying-out device 8 have the same structure, and a feed roller 11 interlocked with a pair of left and right servo motors 10 that are electrically synchronized with each other. The two side surfaces 2a are configured to be able to contact and separate freely.
Further, the brake device 9 is configured such that a brake roller 13 interlocking with a pair of left and right torque motors 12 that are electrically synchronized is capable of coming into contact with and separating from both side surfaces 2 a of the carriage 1. It should be noted that the torque motor 12 applies a reverse rotation force A to the brake roller 13. The feed rotation force B of the feed roller 11 by the servo motor 10 is set to be larger than the reverse feed rotation force A by the torque motor 12.

The carriage 1 is provided with a supporting device 20 for supporting a body 14 which is an example of a conveyed object, via a non-drive type elevating device 21 so as to be able to move up and down. That is, the elevating device 21 is of a pantograph type, and is attached to the main body 2 via a first shaft 22 in the left-right direction so as to be swingable, and a first link 23 extending rearward.
And a second link 26 which is swingably attached to the sliding body 24 on the main body 2 side via a second shaft 25 in the left-right direction and extends forward.
A left and right connecting shaft 27 for connecting the intermediate portions of the two links 23 and 26 so as to be swingable relative to each other, and a guide rail 28 provided on the main body 2 side for guiding the sliding body 24 in the front and rear direction. The links 23, 26, etc., are arranged in two sets by being distributed to the left and right, but the slide 24 is also used. The support device
Reference numeral 20 includes a flat frame-shaped frame 29, and a support base 30 connected upward from the front and rear portions of the frame 29. A first pin in the left-right direction is provided at the free end of the first link 23.
A roller 32 is mounted via a 31, and a guide body 33 to which the roller 32 is fitted is provided at the rear of the frame 29 in the front-rear direction. The free end of the second link 26 is connected to the front part of the frame 29 via a second pin 34 in the left-right direction so as to be relatively swingable. On the main body 2 side, a receiving base 35 for restricting the lower limit of the frame 29 is provided. And the sliding body
A pair of left and right passive projections 37 is suspended from 24, and a positioning projection 38 is suspended from the main body 2 in front of the passive projections 37.

The main body 2 is provided with a lock device 40 of the elevating device 21 that has been moved up. That is, in the sliding body 24, the lock holes 36 in the vertical direction are formed at a plurality of locations in the front-rear direction.
A lock pin 41 that can be freely engaged with the lock hole 36 from above is inserted through a guide cylinder 43 provided on a bracket portion 42 integrated with the main body 2. A left-right rotating shaft 44 is mounted on the bracket portion 42 via a bearing 45. A free end of a first lever 46 having a base end integrated with the rotating shaft 44 has a pin.
It is connected to the upper end of the lock pin 41 via 47 or the like.
A second lever 48 connected to the rear of the rotary shaft 44 has a vertical rod bent at a right angle, and a locked roller 50 is attached to a lower end of the vertical rod via a pin 49. Can be A spring 51 for urging the lock pin 41 in an engaging (downward) direction is provided between the bracket 42 and the first lever 46.

At a plurality of locations below the fixed path 5, movable bodies 60 that can travel along the fixed circuit 5 are provided. That is, a pair of left and right rails 59 is disposed below the rails 4 along the fixed path 5. The movable body 60 is mounted on a rail 59 via wheels 62 attached to a main body 61, and is capable of reciprocating traveling by linking a traveling drive device 63 mounted on the main body 61 to some of the wheels 62. Becomes 64 indicates a cable bear.

The movable body 60 is provided with a lifting and lowering device 70 that can be connected to and separated from the lifting and lowering device 21. That is, a pair of left and right guide rails 71 is provided on the rear upper surface of the main body 61, and a sliding body 72 supported and guided by these guide rails 71 is provided. The main body 61 is opposed to the sliding body 72 from the front.
A cylinder device 73 is provided thereon, and its piston rod 73a is connected to the sliding body 72. It should be noted that the cylinder device 73 may be replaced by a motor, and the screw shaft to be rotated may be fitted to the sliding body 72 side. Also the cylinder device 73
Is equipped with an encoder and the like for detecting an operation amount. A transmission projection 76 is provided on the slide body 72 via a bracket 74 and a left-right pin 75. This transmission projection
76 is an anti-back type, which allows the passive projection 37 and the positioning projection 38 to pass by swinging forward, but is configured to abut against the passive projection 37 in a standing posture from the rear. . At the front of the main body 61, a stopper body 77 to which the positioning projection 38 can abut is provided so as to be capable of standing upright and sideways.
That is, a support shaft 79 in the left-right direction is mounted on the main body 61 via the bracket 78, and the stopper body 77 is mounted on the support shaft 79 so as to be able to stand upright and sideways. A cam roller 80 is attached to the front of the stopper body 77 so as to freely rotate. The bracket 78 has a pair of left and right sides, and a guide rail 81 in the front-rear direction is provided between the pair. A cam body 82 supported and guided by the guide rail 81 is provided.The cam body 82 has a horizontal cam surface 82a formed by an upper surface and an inclined cam surface 82b formed by a front end surface. Cam surface 8
The cam roller 80 can freely roll on 2a and 82b. A cylinder device 83 for moving the cam body 82 in the front-rear direction is provided between the main body 61 and the cam body 82.

The movable body 60 is provided with an unlocking device 85 corresponding to the locking device 40. That is, on one side of the main body 61, a guide rail 86 is provided along the guide rail 71, a holding table 87 supported and guided by the guide rail 86 is provided, and a cylinder device 88 for moving the holding table 87 is provided.
Is provided between the main body 61 and the holding table 87. A locking member 89 that can be locked from below with respect to the locked roller 50 has a guide rod 90 suspended from its lower surface, and a guide cylinder 91 that guides the guide rod 90 is attached to the holding base 87. Provided. A cylinder device 92 for raising and lowering the locking member 89
Is provided between the locking member 89 and the holding table 87.

The truck 1 supplied to the start end of the fixed path 5 is thrown in by hand or the like so that the front end thereof enters the carriage carrying device 6. Then, the carriage 1 is slightly conveyed on the fixed route 5 and passed to the carriage driving device 7. At this time, both feed rollers 11 are separated from each other. Therefore, the loading is performed without any trouble. After the loading, the two feed rollers 11 are moved closer to each other and pressed against the side surface 2a of the main body 2, and at this time, the feed rollers 11 are driven to rotate. That is, the double feed roller 11 is driven by the drive of the servo motor 10 via a speed reducer or the like.
Are forcedly rotated in opposite directions. Therefore, the carriage 1 is conveyed on the fixed path 5 by applying a running force to the carriage 1 by pressing the forcibly rotated feed roller 11 against the side surface 2a.

The truck 1 that has reached the end of the fixed path 5 is braked by the brake device 9. That is, when the carriage operation of the carriage 1 by the carriage driving device 7 is stopped, the brake rollers 13 of the brake device 9 are separated from each other. Then, in conjunction with the carry-in operation of the carriage driving device 7, the two brake rollers 13 are moved closer to each other, and pressed against the side surface 2a of the main body 2. At this time, the brake roller 13 is located on the opposite side to the feed roller 11. It is driven to rotate. That is, the driving of the torque motor 12 forcibly rotates the two brake rollers 13 in mutually opposite directions via a speed reducer or the like. Therefore, when the brake roller 13 which is being forcibly rotated is pressed against the side surface 2a, a thrust in the reverse transport direction acts on the carriage 1 by the reverse rotation torque A, but the rotation torque B is changed to the reverse rotation torque. Since it is larger than A, the brake roller 13 is rotated to the feed rotation side in accordance with the difference, and the load at that time is absorbed by the torque motor 12. As a result, the trolley 1 corresponding to the poor person is conveyed while receiving the braking action. Therefore, between the trolley drive device 7 and the brake device 9, a plurality of trolleys 1 Aligned in a tightly pushed state without any gaps. By such a play, a flat work space is formed by the upper surface of the main body of the group of carts 1 arranged in a straight line, so that an operator can perform various manual operations on the body 14 from the cart 1. At this time, even if the group of carts is transported, the worker can perform manual work and walking without falling down and forth because the group of carts is dense and linear.

When the truck 1 being transported reaches a specific location, the support device 20 is raised as necessary. That is, the support device 20 is normally received at the receiving end at the lower limit as shown by the solid line in FIG. 1, and the lock pin 41 of the lock device 40 is engaged with the frontmost lock hole 36. Further, the stopper body 77 is moved by the extension of the cylinder device 83 to the cam body 82.
By moving the cam roller 80 backward, the cam roller 80 is in a side-down posture corresponding to the inclined cam surface 82b as shown by the imaginary line in FIG. Therefore, the bogie 1 in which the support device 20 is not lifted has the stopper body 77 in which the positioning projection 38 and the passive projection 37 pass while the transmission projection 76 is tilted, and are lying down.
Passes above the movable body 60.

In the case of the bogie 1 where the support device 20 is to be lifted, first, the cam body 82 is moved forward by the contraction of the cylinder device 83, and the cam roller 80 is rolled from the inclined cam surface 82b to the horizontal cam surface 82a. Then, as shown by a solid line in FIG. As a result, the positioning projection 38 passing through the portion of the transmission projection 76 becomes a stopper body.
The movable body 60 travels integrally with the carriage 1 thereafter. At this time, the passive projection 37 is located in front of the transmission projection 76. The lock release device 85 is operated in this state. That is, after the locking member 89 is raised by the extension of the cylinder device 92 and locked to the locked roller 50, the holding table 87 is moved forward by the contraction of the cylinder device 88. As a result, the second lever 48 is pivoted downward via the rotation shaft 44 and the first lever 46 is pivoted upward, whereby the lock pin 41 is raised and removed from the lock hole 36. , Locking device
40 is unlocked. Next, the elevating device 70 is operated. That is, when the cylinder device 73 is contracted and the sliding body 72 is moved forward, the transmission projection 76 provided on the sliding body 72 comes into contact with the passive projection 37, and is guided by the guide rail 71, so that the sliding body 72 is guided. Moves forward. Therefore lever 4
The pantograph mechanism, such as 6,48, extends and raises the support device 20, as indicated by the phantom line in FIG. As a result, the level of the body 14 rises with respect to the upper surface of the main body 2. At this time, the rising amount is detected by an encoder or the like, and when the level reaches an arbitrary target level, the cylinder device 73 is stopped. . Next, the lock releasing device 85 is operated in the reverse direction to the above, and the lock pin 41 descends to be locked in the facing lock hole 36, and the sliding body 24 is locked by the lock device 40. Therefore, an operator on the main body 2 can perform a manual operation on a predetermined position of the raised body 14. The work may be an automatic work by a robot.

After performing the intended work, the support device 20 can be lowered and placed on the cradle 35 by performing the operation reverse to that described above. Then, by moving the stopper body 77 sideways by the reverse operation of the cylinder device 83, only the carriage 1 can travel with the movable body 60 remaining. Note that the movable body 60 can be returned (run backward) by the operation of the running drive device 63.

The above-described operation is performed at all of a plurality of locations in the fixed path 5 or at some required locations. The lift amount can be adjusted by changing the amount of expansion and contraction of the cylinder device 83,
In addition, it is possible to make a difference in the lift amount at multiple places,
Thus, a suitable lift amount can be expected according to the work content and the vehicle type.

The truck 1 pushed out from the brake device 9 by the above-described pushing is carried out to the next step by the carriage carrying-out device 8.

In the transportation by the carriage driving device 7, when a certain feed amount is detected, the braking operation of the lower brake device 9 is stopped.

In the truck loading device 6, the truck driving device 7, and the truck unloading device 8, the corresponding servo motors 10 are electrically synchronized, and the brake devices 9 are electrically synchronized between the corresponding torque motors 12.

In the above embodiment, for example, the rail 4 and the like are supported by the machine frame 95 as shown in FIG.
Although a return path 96 is formed in 95, it may be circular in plan. Further, in the above-described embodiment, the type in which power is supplied to the movable body 60 via the cable bear 64 has been described.However, the power supply rail is provided on the rail 59 side and the current collector is provided on the movable body 60. May be self-propelled.

Effects of the Invention According to the present invention having the above-described configuration, after the bogie is positioned on the fixed path so as to face the bogie drive device, the bogie drive device is acted on the bogie side, thereby providing a large propulsive force to the bogie. Therefore, the carriage can be transported on a fixed route. At this time, the cart can push and transport the group of carts that have stopped ahead. As a result, the bogie driving device needs to be installed only on a part of the fixed path, and the remaining part can be less complicated. In addition, since the brake device acts on the downstream bogie on the lower side of the fixed route, the downstream bogie can be transported while being subjected to the braking action. Can be efficiently transported in a densely pushed state without creating a gap in the sheet. And since the truck group can be densely arranged in series between the truck drive device and the brake device,
The worker on the trolley can always carry out manual work and walking safely without falling down. Further, when the bogie reaches a predetermined location on the fixed route, the movable body elevating / lowering device located below the bogie is connected to the elevating device and operated to apply an elevating drive force to the elevating device. Thus, by raising and lowering the support device via the lifting device, it is possible to change the level of the transferred object with respect to the upper surface of the carriage,
Further, by locking the ascending position of the elevating device with the lock device, the worker on the bogie can easily and easily perform a manual operation on the conveyed object at any desired optimum level. By adjusting the amount of lifting and lowering and properly using a plurality of locations, it is possible to sufficiently cope with the type of the transported object, and the transported object can be lifted and lowered at any place without complicating the carriage. .

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is an enlarged side view of a main part, FIG. 2 is a side view of a main part, FIG.
The figure is a longitudinal rear view, FIG. 5 is an overall schematic side view, and FIG. 6 is a schematic plan view. DESCRIPTION OF SYMBOLS 1 ... trolley, 2 ... body, 2a ... side, 5 ... constant path, 7 ... trolley drive device, 9 ... brake device, 10 ...
Servo motor, 11: Feed roller, 12: Torque motor, 13: Brake roller, 14: Body (conveyed object), 20: Supporting device, 21: Lifting device, 23, 26: Link, 24 ... Sliding body, 36 ... Lock hole, 37 ... Passive projection, 38 ... Positioning projection, 40 ... Lock device, 41 ... Lock pin, 44 ... Rotating shaft, 46,48 ... Lever, 50 ... locked roller, 60 ... movable body, 63 ... travel drive device, 70 ...
... elevating device, 72 ... sliding body, 76 ... transmission projection, 77 ...
Stopper body, 80… Cam roller, 82… Cam body, 85…
Lock release device, 89 ... Locking member.

Claims (1)

(57) [Claims] 1. A truck drive device for applying a running force to a truck is provided on a side of a fixed route on which the truck can travel, and a truck contacting the truck on a downstream side of the fixed route from the position of the truck drive device. A brake device for applying a braking force smaller than the traveling force of the carriage driving device, and the carriage is locked to the carriage by a non-drive type lifting device and a plurality of raised positions of the lifting device. And a movable body that can run separately from the bogie along the fixed path below the fixed path, and is connected to and separated from the lifting apparatus so as to be driven up and down by the connection. A carriage transporting device, wherein a lifting / lowering device for applying a force is provided on the movable body.