JP2771007B2 - Truck transport device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie transport device used to transport a non-driving bogie that can travel on the floor side on a fixed route.

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.

Problems to be Solved by the Invention According to the conventional type as described above, since the chain must be provided over the entire length of the fixed path, the entire length of the fixed path becomes complicated, and the truck has a hooking piece. 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, it is not safe to perform, for example, a light fall due to the gap described above. Further, since the vehicle supported by the support is always at a constant level on the bogie, the operator must take an unreasonable posture depending on the work location.

The object of the present invention is that it is only necessary to install a part of a certain route, and most of the remaining part can eliminate complexity, and furthermore, it is possible to carry without generating a gap between the carriages, and from the top of the carriage. The task of the present invention is to provide a bogie transport device that can be safely operated without difficulty.

Means for Solving the Problems In order to achieve the above object, the carriage transport device of the present invention is
A bogie driving device for applying a running force to the bogie is provided on a side of a certain route on which the bogie can travel, and the bogie driving device is brought into contact with the bogie on a downstream side of the certain route from the position of the bogie driving device. Providing a brake device that applies a smaller braking force, providing a support device for the transferred object on the carriage, the support device is guided to the carriage side, and a plurality of elevating bodies that can move up and down,
A lift device for lifting the support device at a plurality of positions along the fixed path is provided, which is configured by a receiver for the conveyed object provided at the upper end side of these elevating bodies and a roller provided at the lower end side of each elevating body. The lift device has an elevating frame, a device for elevating the elevating frame, and an operation rail attached to the elevating frame. The operation rail is along a fixed path, and the elevating frame moves up and down, Acting on the roller from below, the lifting body is raised.

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 position on the fixed path, the operation of the device for raising and lowering the lifting frame in the lift device raises the operation rail via the lifting frame to act on the roller group from below. , The lifting / lowering body group can be raised with respect to the bogie, and the conveyed object supported between the receivers can be raised. As a result, the level of the transported object with respect to the upper surface of the carriage is raised in a stable posture, and the transported object is transported while maintaining the stable attitude, so that a manual operation corresponding to the 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 bogie that can travel on the floor side, and has 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. It is configured to be able to contact and separate from both side surfaces 1a.
Further, the brake device 9 is configured such that a brake roller 13 interlocked with a pair of left and right torque motors 12 that are electrically synchronized can be brought into contact with and separated from both side surfaces 1 a of the carriage 1. The torque motor 12 applies a reverse rotation torque 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 support device 20 for supporting a body 14 which is an example of a transferred object, so as to be able to move up and down. That is, the support device 20 includes a front support 21A and a rear support 21B,
Each has a pair of right and left lifting rods 22A and 22B, and the upper ends of the left and right rods are connected by frames 23A and 23B. A cylindrical body 24A, 24B for guiding the lifting rods 22A, 22B is attached to the main body 2, and a frame is attached to the cylindrical body 24A, 24B.
The lower limit of the frame 23A, 23B side is restricted by bringing the 23A, 23B into contact. And body 1 on the top of frames 23A and 23B
4 and the lifting rods 22A, 22B
Rollers 26A and 26B are attached to the lower end of B so as to freely rotate. Note that a rollover prevention roller 27 is attached to the lower surface side of the main body 2.

At a plurality of locations in the fixed path 5, lift devices 30 for raising and lowering the support device 20 are separately operably provided. The lift device 30 has a pair of left and right guide rails 32 on a base body 31.
Is divided into two parts in the length direction along. A pair of front and rear movable tables 35 supported and guided by guide rails 32 via wheels 33 and guided by lateral regulating rollers 34 are provided, and the space between these movable tables 35 is interposed between pins 36 and rods 37. Connected. One movable base 35 has a base body 31
The cylinder device 38 attached above is connected, so that the movable table 35 can be integrally moved along the fixed path 5 by the expansion and contraction of the cylinder device 38. Brackets 39 are erected from the base body 31 outside the ends of the guide rails 32, and a vertical guide body 40 is attached to the inner surfaces of the brackets 39 facing each other. And guide body 40
An elevating frame 43 is continuously provided in a direction opposite to each other from an elevating member 42 guided through rollers 41, and the opposing portions of the elevating frame 43 are integrated by a connecting member 44. Further, support rods 45 are continuously provided from a plurality of positions of the lifting frame 43 outward in the left-right direction, and lifting rails 46 along the fixed path 5 are attached between the free ends of the support rods 45. The use rail 46 can freely contact the rollers 26A and 26B from below. At the lower part of the elevating frame 43, a cam part 47 which is higher in the downstream side is formed in a ridge shape in the lateral direction, and a receiving roller 48 which can contact the cam part 47 from below and a contact roller from above. Flexible holding roller
49 are attached to a bracket 50 erected from the movable base 35 so as to freely rotate. Therefore, the cylinder device 38 is expanded and contracted, and the rollers 48 and 49 are moved in the direction of the fixed path 5 via the movable base 35 and the like, so that the lifting frame 43 is raised and lowered via the cam portion 47, and The rail 46 can be raised and lowered between a raised working position and a lowered non-working position. In addition, the part of the lift device 30 includes the above-mentioned overturn prevention roller.
A fall prevention rail 51 to which 27 can be freely fitted is provided.

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 pushing, 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 the 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 lift device 30 is operated as necessary. That is, both rollers of the carriage 1
When 26A and 26B face the starting end of the lifting rail 46, the detection signal is dropped, and based on that, the cylinder device 38 in the contracted state is extended as shown in FIG. Thereby, both movable tables 35 are moved to the upstream side. Then receiving roller 48
And the pressing roller 49 move together, so that the cam portion 47
The lifting frame 43 is raised via. This ascent is guided by the guide body 40 and performed right above, and at the same time, the lifting rail 46 ascends via the support rod 45. As the lifting rail 46 is raised, the lifting rods 22A, 22B are pushed up via the rollers 26A, 26B as shown in FIG.
The supporting body 14 between 5B can be raised. As a result, the level of the body 14 rises with respect to the upper surface of the main body 2, and the worker on the main body 2 can manually work on a predetermined portion of the body 14 that has risen while the carriage 1 is being transported. The cylinder device 38 in the contracted state as shown in FIG. 1 is contracted by a detection signal when both rollers 26A and 26B face the end of the lifting rail 46. This makes both movable platform 35
Is moved downstream, and the receiving roller 48 and the pressing roller 49 move integrally, so that the lifting frame 43 is lowered via the cam portion 47. Therefore, the lifting rails 46 are integrally lowered, so that the lifting rods 22A and 22B are pushed down, so that the body 14 supported between the receiving members 25A and 25B can be lowered. In the lift action section, the overturn prevention roller 27 is fitted to the overturn prevention rail 51 as shown by the imaginary line in FIG. 3, thereby preventing the carriage 1 from overturning due to an increase in the center of gravity. .

The above-described operation is performed at all of the plurality of locations where the lift device 30 is provided or at some of the required locations. In addition, the lift amount can be adjusted by changing the amount of expansion and contraction of the cylinder device 38, and it is also possible to make a difference in the lift amount at a plurality of locations. obtain.

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 action by the inferior 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-described embodiment, the side surfaces 2a of the main body 1 are shown as the portions where the bogie driving device 7 and the like operate. It may be in the form of The bogie driving device 7
Although the type in which the feed roller 11 is pressed from the left and right is shown, this may be a type in which the feed roller 11 can be freely approached and separated only from one side and the idle roller group is arranged in a quantitative manner on the other side and backed up. . Further, as the bogie driving device 7, a type in which a conveyor belt is pressed in place of the feed roller 11, a type in which a driving pinion is engaged with a rack on the bogie 1 side, and the like can be considered. Such a modified structure of the trolley driving device 7 can be adopted also in the trolley carrying-in device 6, the trolley carrying-out device 8, the brake device 9, and the like.

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 located only on a part of the fixed route, and the rest of the truck 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. When the bogie reaches a predetermined location on the fixed path, the operation of the device for raising and lowering the elevating frame in the lift device raises the operating rail via the elevating frame to act on the roller group from below,
The lifting / lowering body group can be raised with respect to the carriage via the roller group, and the transported object supported between the receiving members can be raised. As a result, the level of the transported object with respect to the upper surface of the trolley can be raised in a stable posture, and the transport can be performed while maintaining the stable attitude. Can be easily and easily performed manually. The work location can sufficiently cope with the type of the object to be transported by adjusting the amount of elevating and lowering and properly using a plurality of locations.

[Brief description of the drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a side view of the main part when the support device is in an up state, FIG. 2 is a side view of the main part when the support device is in a down state, and FIG. 4 is a front view of a main part of the lifter device, FIG. 5 is a schematic side view of the whole, and FIG. 6 is a schematic plan view of the same. 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: Support device, 21A: Front support, 21B: Rear support Body, 22A, 22B ... Lifting rod, 25A, 25B ... Receiver, 26A, 26B ... Roller, 30 ... Lifting device, 35 ... Movable table, 40 ... Guide body, 43 ... Lifting frame, 47 …… Cam part,
48 ... Receiving roller, 49 ... Pressing roller.

Continued on the front page (72) Inventor Masao Kasagi 2-14-5 Shiba, Minato-ku, Tokyo Daifuku Tokyo head office 72) Inventor Shinji Kawabe Kanagawa Prefecture Yokosuka City Taura Port Town No.Kanto Automobile Industry Co., Ltd. -152705 (JP, A) JP-A-63-152769 (JP, U) JP-B-39-11104 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B61B 13/00 B61B 13/12

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 carriage device for applying a braking force smaller than the carriage driving device, a carriage supporting device is provided on the carriage, and the supporting device is guided by the carriage side and is capable of moving up and down; A receiver for the transported object provided on the upper end side of the elevating body, and a roller provided on the lower end side of each elevating body, and a lifting device for elevating the supporting device at a plurality of locations in the fixed path are provided. The lift device includes an elevating frame, a device for elevating the elevating frame, and an operation rail attached to the elevating frame. The operating rail is along a predetermined path, and the roller is moved by elevating the elevating frame. Works from below Carriage conveying apparatus characterized by raising.