JPS6225540B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to mobile trolley equipment used in peripheral equipment of automated warehouses and general logistics.

In conventional mobile cart equipment, when changing the course of cart a, a traverser b is used at the course changing section.
The traverser method (see Figure 1), in which the trolley a is temporarily stopped and the entire trolley a is moved along the guide rail c from the main rail d to the course change rail d', or the turntable e trolley a
Turntable method that changes the overall direction (second
(see figure) etc. have been adopted.

However, in each of the above-mentioned conventional methods, there are problems such as the need to stop the trolley a, resulting in poor work smoothness and efficiency, and the need for large-scale equipment to move the entire trolley a. Was.

The present invention has been made in view of the above-mentioned circumstances, and a drive shaft is arranged in a rail having a branching part and an intersection part, and the drive shaft is arranged in a position other than the intersection part with the rail so that the upper surface of the drive shaft is located above the upper surface of the rail. a movable cart having a guide wheel that clamps the side of the rail, a running wheel that runs on the rail, and a friction drive wheel that contacts the drive shaft and receives a driving force, and the guide wheel passes on the rail. The present invention relates to a movable trolley equipment characterized in that a movable part that can come into contact with and separate from a guide wheel is provided at a branching part and an intersection part.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a part of the mobile trolley equipment of the present invention, in which 1 is a trolley equipped with a plurality of friction drive wheels 2 at required intervals, 3 and 3' are running wheels of the trolley 1; 3' is the running wheel on the side that has the guide wheel 10 described later, and 3' is the running wheel on the side that does not have the guide wheel 10, 4, 4'
are straight rails on which the running wheels 3, 3' run, 5,
5' is a curved rail branching from the straight rails 4, 4' to change the course of the bogie 1; 6 is the rail 4,
4', 5, and 5', and is disposed at a portion other than the intersection with the curved rail 5 in order to make the bogie 1 travel in contact with each of the friction drive wheels 2 of the bogie 1. (See FIG. 4), 7 is a split type drive shaft which is arranged substantially parallel to the curved rail 5 except for the portion where it intersects with the straight rail 4'.

At the branching part between the straight rail 4 and the curved rail 5,
Movable rail sections 8 and 9 are provided that can be moved up and down or horizontally using a cylinder, rack and pinion system, etc., and the movable rail section 8 on the straight rail 4 side is moved so that the top surface of the rail section 8 comes off from the top surface of the straight rail 4. When the carriage 1 is moved to the position shown in FIG.
Similarly, when the movable rail portion 9 is moved, the guide wheel 10 is configured to run along the straight rail 4 and the movable rail 8 without coming into contact with the curved rail 5. . Furthermore, 11 is a straight rail 4'
It is a movable rail section provided at the intersection of
When moving the guide wheel 10, the guide wheel 10 can run along the curved rail 5 without coming into contact with the straight rail 4' and the movable rail portion 11. In the case shown in Fig. 3, when the bogie 1 is run along the curved rails 5 and 5', the running wheels 3' of the bogie 1 draw geometrically different travel trajectories at the front and rear. , the curved track 5' is configured broadly.

In the above configuration, when moving the trolley 1 linearly, the movable rail portion 8 is aligned with the top surface and the side surface of the linear rail 4, and the movable rail portion 9 is
is moved, and the upper surface of the movable rail portion 11 is made to coincide with the curved rail 5. If the drive shafts 6 and 7 are driven in this state, the truck 1 will move as each friction drive wheel 2 receives a friction drive force from the drive shaft 6. When the trolley 1 moves, the running wheels 3
approaches the branching point between the straight track 4 and the curved track 5, but since the movable track section 9 is moving, the guide wheel 1
0 does not come into contact with the curved rail 5, so the running wheels 3 can smoothly pass through the branch. As the truck 1 moves further, the running wheels 3' come to the intersection of the curved rail 5 and the straight rail 4', but because the movable rail section 11 is not moving, similar to the movable rail section 8 at the branch point. The running wheels 3' can smoothly pass through the intersection. Also, during this traveling, each friction drive wheel 2 also approaches the intersection with the curved rail 5, but since the drive shaft 6 is not in contact with the curved rail 5 and is located above the curved rail 5, As shown in FIG. 5, when the front friction drive wheel 2 separates from the drive shaft 6, the rear friction drive wheel 2 changes, and when the rear friction drive wheel 2 separates from the drive shaft 6, the front friction drive wheel 2 Since the wheels 2 can contact the drive shafts 6 at positions sandwiching the curved rails 5 without contacting the curved rails 5, the bogie 1 can move smoothly without losing driving force.

As mentioned above, when changing the course of the truck 1 moving on the straight rails 4, 4', before the truck 1 approaches the course changing section, move the movable rail section 8 of the branch section in the course changing section. is moved, the movable rail portion 9 is made to coincide with the curved rail 5, and the movable rail portion 11 at the intersection portion is moved. By doing this, the running wheels 3 of the bogie 1 can transfer to the curved rail 5 without the guide wheels 10 coming into contact with the straight rail 4 after the branching point, and can move further and come into contact with the straight rail 4'. Moreover, since the directionality of the bogie 1 is restricted, the running wheels 3' move directly onto the curved rail 5'. At this time, each friction drive wheel 2 is moved along the straight rail 4' as in the case of linear movement.
can be easily crossed.

In this way, the bogie 1 has each movable rail section 8, 9, 1
By simply performing the first movement operation, the course can be easily changed without stopping.

In the present invention, in the above embodiment, an example was shown in which the traveling wheel 3 with the guide wheel 10 was made to run along the outer curved rail 5, but it is of course possible to run it along the inner curved rail 5'. . Further, in the above embodiment, a case was explained in which a cylindrical friction drive wheel 2 that rotates around a vertical axis and rotates around a horizontal axis is used. Of course, the present invention can be implemented using a rotating disk-shaped friction drive wheel having an inverted truncated cone shape, and various other changes can be made without departing from the gist of the present invention.

As described above, according to the present invention, (i) it is efficient because the course can be easily changed without stopping the truck once;

(ii) Track switching time can be shortened.

(iii) It is possible to restart the vehicle no matter where it stops.

(iv) Compared to traverser and turntable systems, the drive device can be made smaller.

(v) There are few moving parts, so failures are less likely to occur.

Demonstrates excellent effects such as

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the conventional example, Figure 3 is a partial plan view of the mobile trolley equipment of the present invention, Figure 4 is a side view showing the main parts of Figure 3, and Figure 5 is a friction drive It is a figure showing the relationship between a wheel and a drive shaft. 1... Truck, 2... Friction drive wheel, 3, 3'...
Running wheels, 4, 4'... straight rail, 5, 5'... curved rail, 6, 7... drive shaft, 8, 9, 11... movable rail section, 10... guide wheel.

Claims (1)

[Claims] 1. On a rail having a branching part and an intersection, drive shafts are arranged side by side in a part other than the intersection with the rail so that the upper surface of the drive shaft is located above the upper surface of the rail, and the sides of the rail are sandwiched. A movable cart having a guide wheel, a running wheel running on the rail, and a plurality of friction drive wheels in contact with the drive shaft and receiving a driving force, and a guide wheel is provided at a branching portion and an intersection portion of the rail through which the guide wheel passes. Mobile trolley equipment characterized by being provided with a movable part that can make contact with and detach from the vehicle.