JPH0323448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vehicle transport vehicle, and more particularly, sills formed on both sides of the lower part of the vehicle body are supported on front and rear supports provided on a conveyor chain drive vehicle. This invention relates to a trolley that can transport.

Conventional technology When a completed car is transported at an automobile factory, it has conventionally been carried out on a large trolley, or only the front axle of the completed car is supported on the trolley, and the rear wheels are rolled on the floor. I was transporting him. However, the former method has the drawback that the equipment for loading and unloading finished vehicles onto the carts is large-scale and expensive, and the latter method has the drawbacks that the radius of curvature of the curve is large and that the slope of the transport path cannot be made large. Furthermore, if only the front axle is to be lifted, there may not be suitable structural support points.

Problems to be Solved by the Invention The present invention stably supports the lower surface of the area between the front and rear wheels of a completed vehicle with a bogie, and allows the bogie to travel even on curves with a relatively small radius of curvature or on slopes with large slopes. Furthermore, loading and unloading onto and from the trolley can be carried out easily and efficiently.

Means for Solving the Problems The present invention connects four carriers running on floor rails so that they can bend freely to each other by front and rear connecting rods and a floor-traveling trolley in the center to form a conveyor chain with the leading carrier. A carrier coupling body is formed which is driven by a conveyor chain and has a longer overall length than the vehicle to be transported by a removable engagement device provided between the vehicles, and a vehicle body between the front and rear wheels of the vehicle to be transported is mounted on the upper part of the trolley. There are front, rear, left and right supports that support the lower surface, and a pair of front and rear traversing stands each fixed to the upper surface of the outer end and guided by traversing rails provided at the front and rear of the cart, and a pair of traversing tables in the front and rear that support the lower surface of the cart. The gist of the present invention is a structure of a car transporting trolley provided with an expansion/contraction device that drives a traversing platform to move between a retracted position where the trolley enters and an expanded position where it projects outward and supports the lower surface of the vehicle body.

Function Since the carrier coupling body can bend freely at the front and rear portions of the bogie, it is possible to travel on curves with a relatively small bending radius or slopes with large slopes, and the entire length of the carrier coupling body can be bent from the vehicle being transported. Due to the length, it is also possible to remove the engagement device and allow the carrier connections to be stored next to each other.

Embodiment In the layout diagram of FIG. 1, a car M is carried into the loading area 2 with one wheel placed on the slat conveyor 1a and the other side wheel placed on the floor. Loading area 2
There is a lifting device in the pit, and the rail provided on the lifting device is connected to the floor rail 3 in the raised position.
and coincides with the underfloor rail 4 in the lowered position. The unloading area 5 also has a similar lifting device. A carrier coupling body 6, which will be described later, is movable on the rails 3 and 4 in engagement with a conveyor chain 7. The conveyor chain 7 moves directly under the rail 3 until it enters the unloading area 5, but from point a just before the unloading area 5, it bends inward and moves directly under the rail 4 from point b to point c. It descends to a depth of , continues at this depth to points d, e, f, and g, tilts upward from point g to point h, and moves directly below the rail 3 from point i immediately after the loading area 2.

Empty carrier combination 6A that does not carry a car
moves on the rail 4 and is drawn onto the lifting device at the lowered position in the loading area 2 from point f. Next, it is raised by a lifting device, receives the car carried in on the way up, and is then carried out into the rail 3.

At the unloading area 5, the carrier coupling body 6 loaded with the automobile M is moved from the rail 3 to the unloading area 5, contrary to the above.
After being drawn onto the lifting device at the elevated position within the vehicle, the vehicle is lowered, and on the way down, the vehicle is lowered onto the floor and onto the slat conveyor 1b, and then moved into the rail 4.

In FIGS. 2 and 3, the carrier coupling body 6
is four carriers 8 moving on rails 3 or 4
a to 8d to two connecting bodies 9 and 10 that protrude above the floor surface.
A detachable engagement device 13 is provided between the leading carrier 8a and the conveyor chain 7 that guides and moves the chain rail 12 on the floor, and the carrier 8c An engaging protrusion 14 is provided on the holder. The carrier connector 6 is formed slightly longer than the vehicle M so that a vehicle can be loaded and stored on the carrier connector 6.

As shown in FIGS. 4 and 5, the trolley 11 runs on the floor on urethane tire-equipped wheels 15, and the front and rear vertical rods 16 fit into the holes of the carriers 8b and 8c (FIG. 2). The carrier and the truck 11 are connected, and the vertical rod 16 is fitted into a vertical groove 17 formed by the rail 3 to guide the truck 11.

Traversing rails 18 made of channel material facing each other are fixed to the front and rear of the upper part of the bogie 11, and the front-to-back spacing thereof is smaller than the front-to-back length of the car body sill 19 of the automobile M,
A pair of traversing tables 21 are provided on each traversing rail 18, each of which has four wheels 20 fitted thereinto for traversing. The traverse table 21 has a support beam 22 that projects above the traverse rail 18 and extends outward, and is provided with a sill receiver 23 made of rubber or the like on the upper surface of its tip.

A retracted position 23a where the sill receiver 23 is placed within the width of the truck 11 and a maximum widening position 2 where it projects outward from the truck 11.
3b, an expansion/contraction device 24 is provided for movement between the two. To explain the expansion/contraction device 24 illustrated in FIG. 4 and FIG.
are provided to guide and support rollers 27 provided at the front and rear of the rod 26, and one end of a pair of links 28 is pivotally connected to the front and rear ends of the rod 26 by pins 29, and the links 2
The other ends of 8 are pivotally connected to the lower surfaces of the front, rear, left and right transverse tables 21 with pins 30, and a tension spring 31 is stretched between the left and right links 28. Lever 3 is located below the rod 26.
2 is provided protrudingly, and is pushed by a pusher 33 provided on a lifting device 34, which will be described later.

When pusher 33 is shortened, link 28
The spring 31 pulls the traversing carriage 21 toward the center of the carriage, and holds the sill receiver 23 at the retracted position 23a (FIG. 3). When the pusher 33 is extended, the link 28 moves the traversing table 21 outward against the force of the spring 31, and when the pin 29 slightly exceeds the dead center D, deenergizing the pusher 33 causes the traversing table 21 to almost move. It is locked at the maximum widening position 23b.

When some or all of the receivers 23 support the chassis, the length of the links 28 may be changed so that the maximum width expansion interval of the receivers 23 matches the dimensions of the object to be supported. Note that by operating the pusher 33 in multiple stages to change the stroke, the same trolley 11 can be used to transport two or more types of automobiles with different sill or chassis intervals.

In addition to the above-mentioned embodiments, any known means such as a rack type, a cam type, etc. may be used as the expansion/contraction device 24 of the receiver 23.

The lifting device 34 has lifting rails 35, 36 and a chain feeder 37 on the upper part, and the rails 35, 3
6 coincide with the rail 3 and the floor surface, respectively, in the raised position, and the rail 35 coincides with the rail 4 in the lowered position.

Next, the loading operation at the loading station 2 will be explained. First, when the lifting device 34 is in the lowered position, the empty carrier connection body 6A transferred by the conveyor chain 7 is disengaged from the engagement device 13 as the chain 7 deviates laterally from point f in FIG. Stop once. The feeder 38 then engages the protrusion 14 to move the empty carrier link 6A onto the rail 3 on the lifting device.
Pusher 3 of feeder 37
9 engages with the hook 40 to pull the carrier coupling body 6A into a predetermined position and stop it. At this time, the receiver 23
is in the retracted position, and the automobile M to be transported is approaching above the trolley 11 by the slat conveyor 1a.

Then, the lifting device 34 rises to the first stage, and the receiver 2
3 onto the floor (position P in FIG. 3) and stopped slightly below the sill 19 of the vehicle M to be transported. As a result of this first stage rise, the roller of the roller sensor 41 supported at the front of the truck 11 higher than the receiver 23 comes into contact with the fender inner surface 42. The roller can be vertically expanded and contracted by a spring, and the contact height with the inner surface of the fender is determined depending on the positional relationship between the trolley 11 and the automobile M. At this time, since the car M continues to move forward on the conveyor 1a, the carrier linkage 6A
is towed by the automobile M by the roller sensor 40 and begins to move. At the same time, the receiver 23 is moved to a predetermined widening position.

Then, the lifting device 34 rises to the second stage, and the receiver 2
3 moves forward and hits the sill 19 and lifts it (position Q in Figure 3). At this time, the longitudinal position of the support 23 is predetermined so that it is located before and after the center of gravity of the automobile M, so that the automobile M is stably transferred onto the trolley 11 with its wheels rising from the floor surface.
The feeder 37 restarts and the pusher 43 moves to the protrusion 1.
4 and pushes the carrier coupling body 6 supporting the automobile M into the rail 3. When the leading carrier 8a reaches point i in FIG. 1, the engaging device 13 engages and the conveyor chain 7 pulls it out onto the rail 3.

At the unloading area 5, when the carrier coupling body 6 coming from the rail 3 reaches point a in FIG. Away, rail 4
going into.

A release plate 43 is attached to the rear carrier 8d to release the engagement device 13 when the following carrier link 6 approaches, and this stops the carrier link 6 at a stopper during transport. In this case, the following carrier combination bodies can be sequentially stopped adjacent to each other and stored. Therefore, the overall length of the carrier coupling body 6 is set to be longer than that of the automobile M.

Effects of the Invention The present invention has the above-mentioned configuration, and since the center portion of the automobile is supported and transferred on the truck, the truck can be small, and the carrier coupling body is bendable.
It has the effect of being able to run freely even on curves with a small radius of curvature or slopes with a relatively large slope.Furthermore, the carrier connection body is raised and lowered in two stages at the loading/unloading area, and the distance between the left and right supports can be increased or decreased during that time. Therefore, when not in use, the spacing can be made smaller to make it easier to drive, and the spacing between the supports can be adapted to various types of automobiles.In addition, the supported automobiles can be stored. Furthermore, since the carrier coupling body has a longer overall length than the automobile, it has the effect of being able to store the automobile without bringing the front and rear into contact with each other.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a layout diagram, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, FIG. 3 is a cross-sectional view taken along line B-B, and FIG. A plan view of the apparatus, FIG. 5 is a sectional view taken along the line C--C in FIG. 4. 3... Floor rail, 6... Carrier connection body, 7
...Conveyor chain, 8a to 8d...Carrier, 8a...Top carrier, 9, 10...Connection rod, 11...Floor running trolley, 13...Engagement device,
18... Traverse rail, 21... Traverse platform, 23...
Receiver, 23a... Retracted position, 23b... Widening position, 24... Expansion/contraction device.

Claims (1)

[Claims] 1. A removable engagement device provided between the leading carrier and the conveyor chain by freely connecting four carriers running on floor rails to each other through front and rear connecting rods and a central floor running trolley. On the upper part of the carrier connected body, which is driven by a conveyor chain and has a longer overall length than the transported vehicle, there are front and rear, left and right supports that support the lower surface of the vehicle body between the front and rear wheels of the transported vehicle, and each support on the outside. A pair of front and rear transverse platforms that are fixed to the upper end surface and move laterally guided by transverse rails provided at the front and rear of the bogie, a retracted position where the receiver is within the width of the bogie, and an expanded width that protrudes outward from the bogie to support the lower surface of the car body. A vehicle transport trolley equipped with an expansion/contraction device that drives a traverse platform to move between positions.