JPS6010961Y2 - Long object conveyance device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a long object transport device used for transporting long objects in long object storage warehouses, etc., and its purpose is to control the length of long objects to be transported. To obtain a conveying device with a simple structure capable of expanding and contracting the entire length of the conveying device according to the situation and always supporting both ends of a long object and safely conveying it.

One embodiment will be described below with reference to the attached illustrative drawings. In FIGS. 1 and 2, reference numeral 1 denotes a drive truck, which is equipped with drive wheels 2 and drive means 3.

Reference numeral 4 denotes a driven truck, and both the trucks 1 and 4 are supported on a common guide rail 5 via wheels 2 and 6 so as to be movable.

Both bogies 1, 4 are provided with columns 7.8, and these columns 7.
, 8, the carts 1, 4 are placed on the lifting platforms 9, 10 that move up and down along the
A fork-shaped cargo transfer means 11, 12, which is known in the art, is provided which can move in and out in a horizontal direction orthogonal to the direction of movement of the container.

This load transfer means 11.12 includes the support columns 7 of both carts 1.4,
8 so that both ends of the elongated object 13 can be supported.

Reference numerals 14 and 15 denote lifting drive means for lifting and lowering the lifting tables 9 and 10, which are operated electrically in synchronization.

Reference numeral 16 is a connecting rod that connects both the bogies 1 and 4.

As shown in FIGS. 4 and 5, both ends of the connecting rod 16 are movable relative to the respective carriages 1, 4 in the direction of movement thereof, with vertical axis rollers 17, 18 and horizontal axis rollers 19.
20 and is fixed to each carriage 1, 4 by means of fixing means 21,22.

These fixing means 21 and 22 have the same structure, and locking protrusions 2 are provided at two locations on the front and back of both ends of the connecting rod 16, respectively.
3 a, 23 b, 24 a, 24 b, a swinging locking piece 27, 28 having recesses 25, 26 that selectively engage with these pairs of locking protrusions, and this swinging locking piece. Cylinder unit 31 that swings around its pivot axis 29°30
The interlocking mechanism between the cylinder units 31, 32 and the swing locking pieces 27, 28 includes L-shaped arms 33, 34, interlocking links 35, 36, and a compression coil spring 37. , 38 are interposed, and the swinging locking pieces 27, 28
When disengaging from the locking protrusion, the interlocking link 35.3
6 works, and compression coil springs 37 and 38 work when returning.

The swing locking pieces 27, 2B may be configured to be capable of linear movement in a direction orthogonal to the connecting rod 16.

39.40, the locking protrusion 23at24a is the locking piece 27.
When the connecting rod 16 is at the position where it is locked at 28, that is, at the retracted position with respect to the carts 1 and 4, the tip of the connecting rod 16 comes into contact with the stopper.
When the connecting rod 16 is in the position where b, 24b is locked by the locking pieces 27, 28, that is, in the extended position with respect to the trolleys 1, 4,
This is a stopper that comes into contact with projections 43 and 44 provided on the connecting rod 16.

Although some of the protrusions 43 and 44 are also used as the locking protrusions 23a and 24a, they may be provided separately.

Next, how to use it will be explained. When the driving truck 1 is moved forward and backward by the driving means 3, the driven truck 4 also moves together via the connecting rod 16. It is possible to safely transport the elongated object 13 with its parts supported.

Furthermore, by raising and lowering the lifting platforms 9 and 10 of both carts 1 and 4 in conjunction with each other, the supporting height of the supported long object 13 can be changed according to the height of the long object receiving side.

The delivery of long objects 13 to and from a cargo handling area or shelf is carried out using the cargo delivery means 1, similar to the conventional fork-shaped cargo delivery means.
This is done by the moving in and out movement of 1.12 and the lifting/lowering movement of the lifting platform 9.10.

As shown in FIG. 2, when the length of the long object 13 to be handled is long, the distance between the two carts 1.4 is widened and the two cargo transfer means 1
1.12, the connecting rod 16 is fixed to both carriages 1, 4 in the extended position shown in FIG. 5 by means of fixing means 21.22.

That is, the locking protrusions 23b and 24b of the connecting rod 16 are connected to the locking pieces 2.
7 and 28 into the recesses 25 and 26.

At this time, the projections 43.44 are in contact with the stoppers 41.42.

In such a situation, when the distance between the two carts 1 and 4 is narrowed to reduce the distance between the two load transfer means 11 and 12 to enable support of a short elongated object 13 as shown in FIG. First, the connecting rod fixing means 21 and 22 of both bogies 1 and 4 are released.

That is, the L-shaped arm 33 is
, 34 and interlocking links 35, 36 to the locking pieces 27.
28 is swung in a direction in which it is removed from the locking protrusions 23b and 24b.

Next, when the driving truck 1 is moved toward the driven truck 4, the driving truck 1 first moves relative to the connecting rod 16, and after the connecting rod 16 contacts the stopper 39, the connecting rod 16 moves toward the driving truck 1.
, and moves relative to the driven cart 4 to a position where it abuts against the stopper 40.

In this way, the connecting rod 16 is connected to both the bogies 1 and 4 at the fourth position.
Once the cylinder unit 31.32 moves the locking piece 27.28 back to the retracted position shown in the figure, the recesses 25, 26 engage the locking protrusion 23a of the connecting rod 16.
, 24a, and the connecting rod 16 connects both the bogies 1 and 4.
Fixed.

That is, both the carts 1 and 4 are connected to each other in a state where they are closest to each other, so that short and long objects 13 can be transported.

Contrary to the above, when fixing the bogies 1 and 4 by increasing the distance between them, the connecting rod 16 and both bogies 1 and 4 are fixed using the locking piece 2.
7. After disengaging and releasing the engagement between the recesses 25 and 26 of 28 and the locking protrusion 23av23b, the driving truck 1 is moved in the direction away from the driven truck 4.

As a result, the driving cart 1 first moves relative to the connecting rod 16, and after the protrusion 43 contacts the stopper 41, the connecting rod 16 is pulled by the driving cart 1 and moves relative to the driven cart 4, and then the stopper 42 The protrusion 44 comes into contact with.

In this way, the connecting rod 16 is connected to both the bogies 1 and 4 at the fifth position.
Once the locking pieces 27 and 28 are moved back to the extended position shown in the figure, the locking pieces 27 and 28 are moved back from the cylinder units 31 and 32, and the recesses 25 and 26 are fitted into the locking protrusions 23b and 24b, thereby locking the connecting rod. 16 should be fixed to both carts 1 and 4.

In addition, after the connection rod fixing action by the locking pieces 27, 28 is released, if the connecting rod 16 starts to move relative to the carts 1, 4, the locking pieces 27, 28 may be returned to their original positions immediately.

In this case, the locking protrusions 23a to 24b are connected to the locking pieces 27, 2
8 is pushed away against the springs 37, 38, and when it corresponds to the recesses 25, 26, the locking pieces 27, 28 move against the springs 37.
, 38 to automatically return to the locking protrusions 23a to 24.
b.

Also, when operating in this way, stoppers 41 and 42
can be omitted.

Furthermore, the fixation of the connecting rod 16 to both bogies 1 and 4 was simultaneously released, but only the fixing of the connecting rod 16 to one of the bogies was released, and after changing the fixing position, the fixing of the connecting rod 16 to the other bogie was released. , the fixing position of the connecting rod 16 with respect to the other truck may be changed.

If the fixing position of the connecting rod 16 with respect to one truck is the retracted position shown in FIG. 4, and the fixing position of the connecting rod 16 with respect to the other truck is the extended position shown in FIG. That is, it is also possible to set the distance between the two cargo transfer means 11, 12 to be an intermediate distance between the maximum distance shown in FIG. 2 and the shortest distance shown in FIG.

As shown in the above embodiments, according to the long object conveying device of the present invention, the distance between the front and rear load transfer means is changed according to the length of the long object to be handled, so that both ends of the long object are always It is possible to stably support and safely transport goods, but in particular it changes the overall length of the transport device itself, and does not simply move a set of cargo delivery means relative to the transport device. Therefore, even when handling short and long objects, the transport device will not unduly protrude from the cargo receiving area at the end of the transport path, and so-called dead space will not be created, so the space (floor surface) will be saved. Utilization efficiency can be increased.

Furthermore, in order to change the distance between the driving truck and the driven truck, there is no need for a screw shaft or a driving means for driving the screw shaft in any forward or reverse direction, and the overall structure is very simple and can be implemented at low cost. I can do it.

In addition, it is also possible to configure the connecting rod to be selectively fixed to each truck at three or more locations along its length.

[Brief explanation of the drawing]

Figure 1 is a side view, Figures 2 and 3 are plan views, and Figure 4 is a side view.
This figure and FIG. 5 are enlarged plan views of the main parts. 1... Drive trolley, 4... Driven trolley, 5
...Guide rail, 9, 10...Elevating platform, 11,12...Cargo delivery means, 13...
...Long object, 16...Connecting rod, 17-20...
...Roller for connecting rod guide, 21, 22...
・Connecting rod fixing means, 23 a, 23 b, 24 a,
24b...Latching protrusion, 25, 26...
Recessed portion, 27.28... Swing locking piece.

Claims (1)

[Scope of utility model registration request] The combination of a driving truck and a driven truck that can travel on a fixed route is avoided, and the connecting rod that connects the round trucks is configured to be movable relative to each truck in the direction of movement, and The connecting rod fixing means selectively fixes the connecting rod in at least two positions, a contracted position and an extended position, and a load transfer means that supports the end of a long article so that it can be transferred between the shelves or the like. A long object conveying device equipped with