JPH0647411B2 - Car carrier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle carrier, and more particularly to a vehicle carrier which supports sills formed on both sides of a lower portion of a vehicle body on two front and rear receivers provided on the vehicle.

When transporting a finished car in an automobile factory, it is conventionally carried on a large truck, or only the front axle of the finished car is supported on the truck, and the rear wheels are rolled on the floor for transportation. I was doing it. However, the former has a drawback that a device for loading and unloading completed vehicles onto a truck is large-scale and expensive, and the latter has a drawback that the radius of curvature of the curve is large and the vertical gradient cannot be large. Further, if only the front axle is to be lifted, there may be structurally inadequate support points.

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art by supporting the sills formed on both sides of the lower surface of the automobile on the trolley with a receiver, and to stably support the completed vehicle even when the trolley is started and stopped. The present invention is to provide a carriage for transporting automobiles.

Therefore, the present invention provides, on the upper part of the bogie body having traveling wheels, front and rear receivers for supporting sills or chassis formed on both sides of the lower surface of the vehicle body between the front and rear wheels of the vehicle to be transported. It is characterized in that it is supported so that the interval can be changed in accordance with the above, and the interval between the receiving members can be changed by a drive source inside the truck or power outside the truck.

Since the center of gravity of automobiles such as passenger cars that have sills formed on both sides of the lower surface of the vehicle is usually within the range surrounded by the sill,
If the sill is supported by the front and rear receivers, the vehicle can be supported in a stable manner and the trolley can be supported in a relatively small front and rear dimension. Therefore, according to the present invention, starting the trolley,
The vehicle will not be displaced back and forth due to the impact when stopped,
In addition, it is possible to transport the vehicle in small turns.

The trolley of the present invention is self-propelled along a predetermined route by being supplied with electricity from a trolley wire through a current collector, or is guided by an internal battery as a power source for unmanned guidance, or is coupled with a conveyor chain to travel. Can be traveled by any appropriate means.

Hereinafter, an embodiment of the present invention will be described together with an automatic vehicle-mounted loading device for a truck.

1 to 4 show an embodiment of a trolley-fed self-propelled carriage. In the layout diagram of FIG. 1, the automobile M is loaded into the loading area 2 with one wheel on the slat conveyor 1 and the other wheel on the floor. There is an elevating device in the pit of the loading area 2, and a rail provided on the elevating device coincides with the rail 3 in the ascending position and a rail 4 in the descending position. The rail 3 is a rail for going below the floor of the truck, and the rail 4 is an underfloor rail for supplying the empty truck. When the empty carriage 5 enters from the rail 4 onto the lifting device, the lifting device rises to support the car M on the carriage 5, and when the lifted position is reached, the carriage 5 travels on the rail 3 to drive the car M. Carry out.

The unloading station 6 also has the same lifting device as the loading station 2, and the trolley 5
When the vehicle M supports the vehicle M and enters from the rail 7 onto the elevating device of the unloading area 6, the elevating device descends so that one wheel of the vehicle M is placed on the slat conveyor 8 and the other wheel is placed on the floor. The empty carriage 5 and the rail 4
Self-propelled to. In this way, it is possible to drive a car using a limited number of trolleys 5 and sequentially pass through a predetermined route, and perform necessary processing and the like.

2 and 3 show details of the loading area 2, and the lifting device 10 provided in the pit 9 is lifted and lowered by a power source (not shown),
It has traveling rails 11 for supporting the carriage 5 on both sides of the upper surface. Trolley wire ducts 12, 1 under rails 3, 4 and 11
A current collector 17 supported by a rear guide tube 16 which is provided with 3, 14 and protrudes from the main body 15 of the carriage 5 is brought into sliding contact with the trolley wire 18.

The trolley 5 travels on the rail 3 by means of wheels 19 having urethane tires, and the front and rear guide tubes 16 have floor grooves or a lifting device 10.
Is inserted into the upper surface groove 20 and guided. The traverse rails 21 each made of a pair of channel members are fixed to the front and rear of the main body 15, and the distance between the front and rear is smaller than the front and rear length of the vehicle body sill 22 of the automobile M, and four wheels 23 are provided on each traverse rail 21. A pair of traverse tables 24 that fit and traverse are provided. The pedestal 24 has a support beam 25 that projects upward from the pedestal rail 21 and extends outward, and has a sill receiver 26 made of rubber or the like on the top surface of the tip thereof.

The sill receiving member 26 is located within the width of the main body 15 and is at the retracted position 26a.
Can be expanded and contracted transversely to the maximum widening position 26a which projects outward from, and the widening position is determined according to the sill spacing of the transported vehicle. The expansion and contraction traverse can be performed by the electric cylinder C in the carriage 5, or can be performed by operating an external device when the carriage 5 is stopped.

An example of the expansion / contraction device 27 for the sill receiver 26 is shown in FIGS. 4 and 5. A guide rail 28 vertically provided in the main body 15 guides and supports the rollers 30 in front of and behind the rod 29.
One end of each pair of links 31 is pivotally attached to the front and rear ends of 9 by a pin 32, and the other ends of the links 31 are connected to the front and rear and left and right traverse stands 2 respectively.
A pin 33 is pivotally attached to the lower surface of 4 and a tension spring 34 is stretched between the left and right links 31. Lever 3 down the rod 29
5, a pusher 3 provided on the lifting device 10
Push with 5.

When the pusher 36 is shortened, the link 31 is
4 to draw the pedestal 24 toward the center of the main body, and hold the sill support 26 at the retracted position 26a (FIG. 3). When the pusher 36 expands, the link 31 springs 3
The transverse table 24 is moved outwardly against the force of 4 and the pin 3
When the pusher 36 is deenergized when the position 2 slightly exceeds the dead point D, the pedestal 24 is locked at the maximum widening position 26b (FIG. 3).

When a part or all of the receivers 26 support the chassis, the length of the link 31 may be changed so that the maximum widening interval of the receivers 26 matches the size of the support target. If you change the stroke by operating the pusher 36 in multiple stages,
The same carriage 5 can be used for transporting two or more types of vehicles having different sill or chassis intervals.

As the expansion / contraction device 27, any known means such as a rack type or a cam type may be used in addition to the above-mentioned embodiment.

Next, the loading operation in the loading field 2 will be described. First, when the lifting device 10 is in the lowered position, the empty carriage 5 enters the rail 11 from the rail 4 and stops at a predetermined position. At this time, the receiving tool 26 is in the retracted position and is approaching above the carriage 5 by the automobile M slat conveyor 1 to be transported.

Then, the ascending / descending position 10 moves up by the first step, and the receiving tool 26 is lifted above the floor surface (position P in FIG. 3) and stopped slightly below the sill 22 of the transported vehicle M. The roller sensor 3 supported on the front part of the carriage 5 higher than the receiving tool 26 by this first step rise.
The roller of No. 7 contacts the inner surface 38 of the fan. The roller can be vertically expanded and contracted by a spring, and the contact height with the inner surface of the fan is determined depending on the positional relationship between the carriage 5 and the automobile M. At this time, since the automobile M continues to move forward by the conveyor 1, the carriage 5 is pulled by the automobile M by the roller sensor 37 and starts moving. At the same time, the receiving tool 26 is moved to a predetermined widening position.

Then, the elevating device 10 moves up by the second step, and the receiving tool 26 moves forward and hits the sill 22 and lifts it (Q in FIG. 3).
reference). At this time, since the front-rear distance of the receiving member 26 is before and after the center of gravity of the automobile M, the wheels of the automobile M are lifted from the floor surface and are smoothly transferred onto the dolly 5, and the dolly 5 is self-propelled. It starts and moves into the rail 3 when the rail 11 coincides with the rail 3.

The unloading operation in the unloading station 6 is performed almost in the reverse of the above-described unloading operation.

If the relative position is determined so that the pusher 36 does not separate from the lever 35 until the receiving member 26 supports the sill 22 after the start of the second-stage ascent, the traverse table 24 is held at a predetermined widening position, and After the receiving tool 26 is pressed against the sill 22,
This pressure contact friction force holds the traverse table 24 in place,
As described above, the link 31 is moved beyond the dead point D and the traverse table 2
There is no need to lock the 4. In this case, when the carriage 5 is lowered at the unloading station 6 and the receiving tool 26 is separated from the sill 22, the transverse table 24 is automatically returned to the retracted position by the spring 34. Therefore, it is necessary to provide a pusher for the return. Disappears.

A sequence control device for performing the series of sequential operations of the lifting device 10 and the carriage 5 can be easily assembled according to a well-known circuit using ordinary devices such as limit switches and relays, and thus detailed description thereof will be omitted.

6 to 9 show an embodiment of a conveyor chain drive type carriage. In the layout diagram of FIG. 6, the same reference numerals as those in FIG. 1 indicate the same components. The automobile M is carried into the loading area 2A by the slat conveyor 1 in the same manner as in FIG. On the other hand, the trolley 5A constitutes a carrier connection body (described later) that is longer than the vehicle M and moves, and the carrier connection body is engaged with the conveyor chain 40 and conveyed. The conveyor chain 40 guides and moves below the floor surface in the forward line 41 and the backward line 42, and the carriage 5A moves on the floor. The chain 40 of the return line 42 bends inward from the point a immediately before the unloading field 6A and inclines downward from the point b to the point c, from which point d, e, f goes from the point g to the point h. It leans upward and continues to the outgoing line 41 from point i.

In FIG. 7 and FIG. 8, four carriers 44a to 4a which guide and run on the carrier rail 43 embedded right below the floor surface.
4d is flexibly connected by the two connecting bodies 45 and 46 on the floor surface and the carriage 5A to form a carrier connecting body 47, and the leading carrier 44a and the chain rail 48 below the floor surface are guided and moved. An engagement device 49 that can be engaged and disengaged with the conveyor chain 40 is provided, and an engagement protrusion 50 is provided on the carrier 44c.
To provide.

In the trolley 5A, the front and rear guide tubes 16 have carriers 44b and 44c.
It has the same structure as the trolley 5 except that it does not have a self-propelled device, a current collector 17, etc.

The lifting device 10A provided in the loading area 2A has a lifting rail 51, a chain feeder 52, and a pusher 36 on the upper portion, and the rail 51 matches the rail 43 in the raised position and the lower carrier rail 53 in the lowered position. To do. The rail 53 is parallel to the chain 40 between e and f in FIG. 6, and at the points e and f, it goes away from the path of the chain 40 and goes straight toward the loading field 2A and the unloading field 6A, respectively.

Next, the loading operation in the loading area 2A will be described. When the lifting device 10A is first in the lowered position, the carrier connecting body 47 transferred by the conveyor chain 40 is temporarily disengaged from the engaging device 49 as the chain 40 laterally deviates at the point f in FIG. Stop. Then, the feeder 55 engages with the protrusion 50 to push the carrier connecting body 47 into the rail 51 of the lifting device, and the pusher 54 of the feeder 52 continues.
Engages with the hook 55, pulls the carrier connecting body 47 into a predetermined position, and stops. After that, as in the case of the above-described embodiment, the operations such as the first-stage lifting of the lifting device 10A, the movement of the receiving member 26 to the widening position, the start of the follow-up movement of the carriage 5A (carrier connection body), and the second-stage lifting of the lifting device 10A are performed. Then, the feeder 52 is restarted and the pusher 56 is engaged with the protrusion 50,
The carrier coupling body 47 supporting the automobile M is pushed into the carrier rail 43. The leading carrier 44a is the sixth
When the point i in the figure is reached, the engagement device 49 engages and is pulled by the conveyor chain 40 to the forward line 41.

In the unloading area 6A, when the carrier connecting body 47 coming from the backward line 42 reaches the point a in FIG.
Is removed, and thereafter, the operation is almost the reverse of the above operation in the loading place 2A, the vehicle M is separated from the lower carrier rail 53.
Enter inside.

Since the present invention has the above-described structure and transfers the vehicle by supporting the central portion of the vehicle on the bogie, the bogie can be small, and therefore the bogie has a relatively small radius of curvature or a relatively large slope. It has the effect that it can travel freely even on slopes and that the loading / unloading area can be installed at a small scale and at low cost. Furthermore, since the dolly moves up and down in two steps at the loading and unloading site, and the receiver is expanded and contracted during that time, the dolly is compact and convenient to move when not in use. In particular, the sill of the automobile was supported by the receiver. In this case, there is an advantage that the support is stable even if the cart is small.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a layout diagram, FIG. 2 is a sectional elevation view taken along the line AA of FIG. 1, and FIG. 3 is also a line BB. Sectional drawing, FIG. 4 is a plan view of the expansion / contraction device, FIG. 5 is a sectional view taken along line CC of FIG. 4, FIGS. 6 to 8 show other embodiments, and FIG. 6 is a layout drawing. FIG. 7 is a sectional elevation view taken along the line DD of FIG. 6, and FIG. 8 is a sectional view taken along the line EE of the same. 5, 5A ... Bogie, 15 ... Bogie main body 21 ... Traverse rail, 22 ... Car body sill 24 ... Traverse stand, 26 ... Receiving device 27 ... Expansion / contraction device, 29 ... Rod 31 ... Link, M ... Car to be transported

Claims (3)

[Claims] 1. A guide traverse is provided on the upper part of a trolley by front and rear, left and right supports for supporting a lower surface of a vehicle body between front and rear wheels of a vehicle to be transported, and traverse rails provided at the front and rear of the trolley with each of the supports fixed to an outer end upper surface. Expansion and contraction that drive the horizontal carriages simultaneously so that they move between a pair of front and rear traverse stands, and a retracted position where the receiver enters the lateral width of the bogie main body and a widening position that projects outward of the main body and supports the lower surface of the vehicle body. A carriage for transporting an automobile having a device. 2. An expansion / contraction device pivotally attaches one end of each pair of left and right links to the front and rear portions of a rod which guides the center of the bogie, and pivots the other end to each traverse base. The carriage for moving an automobile according to claim 1, wherein the traverse base is moved in a lump between the retracted position and the widening position. 3. A trolley for transporting an automobile according to claim 1 or 2, wherein the receiving member supports the vehicle body sill.