JPH0139390B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that, in a normal transport line, each transport vehicle is propelled by a self-propelled trolley for towing or backing, but in a storage line, each transport vehicle is propelled by a self-propelled trolley. The self-propelled cart can be efficiently utilized for propelling a plurality of transport vehicles by separating the cart and automatically feeding the transport vehicle in the storage line using a separate feeding device. The present invention provides transportation equipment equipped with a storage line.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. In FIG. 1, 1 is a boosting conveyance line, 2 is a traction conveyance line, 3 is a storage line, and 4 is a conveyance moving body. , 5 is a self-propelled trolley for boosting, 6 is a self-propelled trolley for towing, and 7 and 8 are route switching means.

As shown in FIGS. 2 and 3, the conveyance moving body 4 consists of a pair of front and rear trolleys 9, 10, and a hanger 11 suspended from both trolleys. , supporting flanged wheels 13 and 14 that fit on the upper edge 12a of one guide rail 12 having a vertically elongated cross-sectional shape, and a pair of left and right wheels that sandwich the lower edge 12b of the guide rail 12 from both sides, front and rear. a set of steady rest rollers 15,
16. Further, the lower end of the front trolley 9 is provided with a towed engagement piece 17 that protrudes forward, and the upper end is provided with a bracket 19 that is pivotally supported by a horizontal support shaft 18 and is swingable back and forth.
, a driven roller 20 that is pivotally supported by this bracket 19, a lever 21 that is connected to the front from the bracket 19, a cam driven roller 22 that is pivotally supported on one side of the tip of this lever 21, and a driven roller 20 that is pivotally supported by the bracket 19. A spring 23 is provided to hold the roller 20 in an oblique driven position. rear trolley 1
0 is provided with a protrusion 24 for being backed that protrudes rearward from its lower end, and a cam 25 for stopping a subsequent moving body that protrudes rearward from its upper end. This cam 25 moves the lever 21 upward via the cam driven roller 22 of the following conveyance moving body 4 when the following conveyance moving body 4 approaches, and moves the bracket 19 backward against the spring 23. By rotating the driven roller 20, the driven roller 20 is switched to an idle rotation position in which the axis thereof is oriented horizontally in the front and rear directions.

Incidentally, as shown in FIG. 3, the driven roller 20
is not directly supported on the bracket 19, but is supported on a movable member 19a that is swingably supported on the bracket 19 by a support shaft parallel to the driven roller 20. A spring 19b interposed between the movable member 19 and the movable member 19a causes the driven roller 20 to move toward the drive shaft 26.
It is configured so that it comes into pressure contact with the

As shown in FIGS. 1 to 3, 6, and 7, the drive shaft 26 extends over the entire length of the storage line 3 at a position above the guide rail 12 in the storage line 3. It is constructed parallel to the guide rail 12, and is operatively connected to a drive motor 27 at one end, and is connected to an arrow 28 shown in FIG.
By rotating in the direction, a driving force in the direction of the arrow 29 is applied to the transport moving body 4 via the driven roller 20 that is in pressure contact with the drive shaft 26.

As shown in FIG. 4, the self-propelled boosting trolley 5 is attached to a flange-equipped drive wheel 30 that fits on the upper edge 12a of the guide rail 12, and protrudes rearward from the upper end of the trolley. A drive motor 31 interlockingly connects with the drive wheel 30, a pair of left and right, front and rear anti-sway rollers 32 that sandwich the lower edge 12b of the guide rail 12 from both sides, and a lower surface of the guide rail lower edge 12b. a pair of front and rear fall prevention rollers 33 that come into contact with the front and back, and a pusher 3 for boosting that protrudes forward from the lower end of the cart.
4.

As shown in FIG. 5, the self-propelled towing truck 6 has a flange-fitting drive wheel 35 that fits on the upper edge 12a of the guide rail 12, and is attached to project rearward from the upper end of the truck. A drive motor 36 interlockingly connects with the drive wheel 35, a pair of left and right and front and rear anti-sway rollers 37 that sandwich the lower edge 12b of the guide rail 12 from both left and right sides, and a lower surface of the guide rail lower edge 12b. This hook 40 is engaged with a pair of front and rear fall prevention rollers 38 that come into contact with the front and rear rollers 38, and a traction hook 40 that is pivotally supported on the rear side of the lower end of the truck so as to be able to swing vertically around a support shaft 39. The hook 40 is provided with a spring 41 that biases the hook 41 to the position, and a solenoid 42 that moves the hook 40 upward to the disengaged position against the spring 41.

Incidentally, as shown in FIG. 7, at the front end of the storage line 3, there is a stopper 43 that can move in and out and has the same effect as the cam 25 provided on the transport moving body 4, and a stopper 43 at the front end of the storage line 3. A feeder 44 is provided for pushing out the conveyance moving body 4 into the traction conveyance line 2 from the section.

To explain how to use the conveyance equipment configured as described above, as shown in FIG. rear trolley 1
By moving the self-propelled cart 5 forward on the guide rail 12 by rotation of the drive wheels 30 while in contact with the protrusion 24 for being pushed, the self-propelled cart 5 moves the transporting moving body 4. The transported object 4 supported by the hanger 11 of the transport moving body 4
5 can be conveyed along the backing conveyance line 1.

Further, as shown in FIG. 5, in the towing conveyance line 2, the hook 40 of the self-propelled towing trolley 6 is engaged with the towed engagement side 17 of the front trolley 9 of the conveyance moving body 4. In this state, the self-propelled cart 6 is moved forward by the rotation of the drive wheels 35, and the transportation vehicle 4 is towed and moved by the self-propelled cart 6, and the object supported on the hanger 11 is moved. Transported object 4
5 can be conveyed along the traction conveyance line 2. The pulling action of the transport vehicle 4 by the self-propelled towing trolley 6 can be canceled by moving the hook 40 upward by the solenoid 42 and separating it from the towed engagement side 17.

When the transport moving body 4 is to enter the storage line 3 from the boosting transport line 1, the route switching means 7 is switched as shown in FIG. The moving object 4 is moved into the target storage line 3. At this time, before the self-propelled boosting trolley 5 moves onto the route switching means 7, the front trolley 9 of the transportation vehicle 4 moves to the storage line 3.
The driven roller 20 begins to come into pressure contact with the rotating drive shaft 26 from the lateral side as shown in FIG. Due to the pressure contact between the driven roller 20 and the drive shaft 26, a thrust is applied to the transport moving body 4, and the transport moving body 4 that has entered the storage line 3 moves on the guide rail 12 of the storage line 3 due to this thrust. It will move forward. On the other hand, the self-propelled boosting trolley 5 that has pushed the transportation moving body 4 into the rear end of the storage line 3 moves straight on the boosting transportation line 1 without entering the storage line 3 by switching the route switching means 7. This can be used to boost another conveyance moving body 4.

The conveying moving body 4 that enters the storage line 3 as described above and moves forward on the storage line 3 by the thrust applied by the driven roller 20 and the drive shaft 26 is moved by a stopper provided at the end. 43 pushes up the lever 21, the bracket 19 rotates backward against the spring 23, and the driven roller 20 is switched to an idle rotation position parallel to the drive shaft 26, thereby automatically stopping. The conveyance movable body 4 that comes in following the conveyance movable body 4 that has stopped in this way
As shown by the imaginary line in FIG. 2, the driven roller 20 is switched to the idle rotation position by the cam 25 of the previously stopped conveyance moving body 4 in the same way as the driven roller 20 was switched by the stopper 43. , it automatically stops in a state where it is connected to the transport moving body 4 that has stopped earlier. In this way, the transporting movable bodies 4 that have entered each storage line 3 are automatically stored sequentially from the leading position of the line.

When transporting the transporting mobile body 4 in the storage line 3 to the traction transport line 2, as shown in FIG. A self-propelled towing trolley 6 is kept on standby on the lower side. On the other hand, in the storage line 3, the stopper 43 is released, and the driven roller 20 of the leading transport moving body 4
By returning the carrier to the driven position by the biasing force of the spring 23, a thrust force is again applied to the transportation vehicle 4, and the transportation vehicle 4 is propelled toward the route switching means 8. Before the driven roller 20 of the conveyance movable body 4 that has started in this way leaves the drive shaft 26, the feeder 44 is driven, and the conveyance movable body 4 is moved by the feeder 44, and the front trolley 9 of the conveyance movable body 4 is moved by the path switching means 8. The hook 40 of the self-propelled towing truck 6 enters the towing conveyance line 2 via the
is pushed back to the position where the towed engagement piece 17 engages. After this, the transport vehicle 4 is pulled into the traction transport line 2 by the self-propelled traction trolley 6, and
The self-propelled trolley 6 transports the transportation vehicle 4 as described above.
It is only necessary to tow and move it by the towing conveyance line 2.

In the storage line 3, the conveyance movable body 4 following the started conveyance movable body 4 automatically moves the driven roller 20 by the biasing force of the spring 23 as the cam 25 separates from the cam driven roller 22. The transportation vehicle 4 was returned to the driven position and started.
Since the transport vehicle 4 automatically starts to follow the vehicle, it is only necessary to automatically stop the transport vehicle 4 using the stopper 43.

Note that, without using the feeder 44, the self-propelled towing cart 6 is moved backward into the storage line 3, and the self-propelled towing cart 6 is used to pull out the transporting body 4 from the storage line 3 to the towing conveyance line 2. It can also be used for Alternatively, the feeder 44 may be configured to feed the conveyance moving body 4 to a position where the entire conveyance body 4 comes out into the traction conveyance line 2. Furthermore, in this case, the self-propelled support vehicle 5 is used instead of the self-propelled tow vehicle 6 to transport the transport vehicle 4.
can also be propelled by the conveyor line 2. Of course, on the contrary, a feeder that pulls the transport moving body 4 from the boost transport line 1 into the storage line 3 may also be used, and when such a feeder is used together, the transport moving body 4 on the transport line 1 may be It is also possible to propel the body 4 with a self-propelled towing trolley 6.

In addition, in the embodiment, a self-propelled trolley 5 exclusively used for boosting and a self-propelled trolley 6 exclusively used for towing were used, but a self-propelled trolley 5 used exclusively for boosting and a self-propelled trolley 6 exclusively used for towing is also used. You can also use a running trolley. In this case, pusher 3 for boosting
4 and a towing hook 40 are provided on each of the front and rear sides of the self-propelled vehicle, the self-propelled vehicle can be used in either direction. Of course, in the self-propelled trolley 5 exclusively for boosting and the self-propelled trolley 6 exclusively for towing as in the above-mentioned embodiments, the pushers 34 for boosting and the hooks 40 for towing are provided on both the front and rear sides as described above. The self-propelled cart can be used in any direction.

As in the above embodiment, the conveyance equipment of the present invention includes a conveyance moving body movable along a guide rail, and a detachable self-propelled trolley (in the embodiment a self-propelled vehicle for boosting 5), a self-propelled vehicle for towing 6), and a feeding device that propels the transportation vehicle that has been separated from the self-propelled vehicle and entered the storage line through the storage line and automatically stores it. The feeding device includes a drive shaft that is rotatably supported along the storage line, and a drive shaft that is provided on each of the transportation moving bodies and that is in pressure contact with the drive shaft in an oblique driven position and receives a propulsive force. a driven roller that can be switched between a driven state and a driven state; and a driven roller that is provided on each conveying moving body so that when a subsequent conveying moving body approaches, the driven roller of the subsequent conveying moving body does not receive a propulsive force from the driven state. means (in the embodiment, cam 2
5), and in a normal transport line, the transport vehicle can be reliably propelled by a self-propelled cart at the necessary thrust and speed, but in a storage line, the above-mentioned As described above, a transport vehicle can be moved and automatically stored using a simple feeding device that uses a drive shaft and a driven roller, so a self-propelled cart can be utilized as a means of propulsion for multiple transport vehicles. It is possible to reduce the cost of the entire equipment by reducing the number of expensive self-propelled carts compared to the number of transportation vehicles.

[Brief explanation of drawings]

Figure 1 is a plan view showing an example of the layout, Figure 2 is a plan view showing an example of the layout.
The figure is a partially cutaway side view of the storage line.
Fig. 3 is a longitudinal sectional front view of the same, Fig. 4 is a side view of the main part in the push conveyance line, Fig. 5 is a side view of the main part in the traction transport line, Fig. 6 is a plan view of the storage line entrance, and Fig. 6 is a plan view of the storage line entrance. FIG. 7 is a plan view of the storage line outlet section. 1... Backing conveyance line, 2... Traction conveyance line, 3... Storage line, 4... Moving body for conveyance, 5... Self-propelled dolly for boosting, 6... Self-propelled dolly for towing, 7, 8... ...Route switching means, 9, 10...
... Trolley, 11 ... Hanger, 12 ... Guide rail, 13, 14 ... Wheels with support flanges, 1
5, 16, 32, 37... steady rest roller, 1
7... Engagement piece for being towed, 20... Driven roller,
21... Lever, 22... Cam driven roller, 2
3...Spring, 24...Protrusion for being pushed, 2
5... Cam for stopping the following moving body, 26... Drive shaft,
30, 35... Drive wheel, 31, 36... Drive motor, 33, 38... Roller for preventing falling in the longitudinal direction, 34... Pusher for boosting, 40... Traction hook, 42... Solenoid, 43... ...Stopper that can be moved in and out at will, 44...feeder.

Claims (1)

[Claims] 1. A transportation vehicle that is movable along a guide rail, a detachable self-propelled truck that propels the transportation vehicle on the transportation line, and a detachable self-propelled vehicle that is separated from the self-propelled vehicle and enters the storage line. a feeding device that propels the transporting moving bodies along the storage line and automatically stores them; the feeding device includes a drive shaft rotatably supported along the storage line; a driven roller which is provided on each transporting moving body and can be switched between a state in which it presses against the drive shaft in an oblique driven position and a state in which it does not receive a propulsive force; and means for automatically stopping the following conveyance body by switching the driven rollers of the subsequent conveyance body from a driven state to a state in which they do not receive propulsion force.