JP2689774B2 - Load transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a method in which an object to be conveyed mounted on a carriage on a fixed route is moved right and left at an arbitrary sorting position among a plurality of sorting positions preset in the route. The present invention relates to a cargo transfer device that pays out in a horizontal direction.

[0002]

2. Description of the Related Art Conventionally, as a load transporting device of this type, for example, a configuration as disclosed in Japanese Patent Application Laid-Open No. 2-182611 has been provided. In this conventional configuration, a traveling rail having a C-shaped cross section is provided, and a traveling carriage supported and guided by the traveling rail and capable of traveling on a constant traveling route is provided. The traveling cart has a movable body having a shape that straddles the traveling rail as a main body, and the traveling body is provided with a traveling roller supported and guided by the traveling rail and a lateral vibration prevention roller. A sorting conveyor is provided for transporting in the left and right lateral directions with respect to the direction. Furthermore, a roller is provided on the outer surface of the movable body, and the roller is fitted to a screw to apply a traveling force to the traveling vehicle.

[0003] The front and rear sides of the traveling vehicle are connected to form a group by grouping a plurality of vehicles, and one of the traveling vehicles in the group is provided with a power supply rail laid along the inner surface of the traveling rail. A current collector that receives power is provided. Further, the other traveling vehicles of the group receive power from the traveling vehicles provided with current collectors via wiring lines.

[0004]

SUMMARY OF THE INVENTION In the above-described load carrying device, a sufficient gap is provided between the front and rear of the traveling carriage in order to smoothly travel on a curved route portion or a vertical route portion existing on a constant traveling route. It is secured, and the existence of this gap causes a load to drop or dust to adversely affect intended travel.

An object of the present invention is to provide a load carrying device which can prevent a gap from being formed between traveling carriages and can smoothly travel on a curved route portion or a vertical route portion.

[0006]

In order to achieve the above object, the load carrying device of the present invention is provided with a group of traveling carriages that travel in a state in which they are connected to each other on a fixed route. A metal cover is continuously provided from one of the adjacent traveling carriages toward the other, and a flexible resin cover is placed continuously on the metal cover from the other traveling carriage toward one side, At the free ends of the both covers, at least one half is formed as a slanted surface that is cut toward the bogie body.

[0007]

According to the structure of the present invention, during traveling, since the space between the front and rear traveling carriages is filled by the superposition of the metal cover and the resin cover, it is possible to prevent the load from falling off and dust from entering. At that time, the strength of the polymerized portion can be secured by the metal cover. Furthermore, when the vehicle travels along a curved path, the inclined surface cut toward the center of the curve can prevent the metal cover from colliding with an adjacent traveling vehicle. Further, when the traveling is on the vertical path portion, the change in the relative angle between the both covers can be absorbed by the elastic deformation of the resin cover, and the overlapping posture is maintained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 7, reference numeral 1 denotes a traveling carriage that can travel in a state where they are connected to each other on a fixed path, and an upper portion thereof is a sorting conveyor 60 that conveys a load (object to be conveyed) 2 laterally to the traveling direction A. By the drive of the sorting conveyor 60, the load 2 is discharged to a plurality of sorting chutes 3 provided along a fixed route.

As shown in FIGS. 1 to 5, a base frame 4 which can be installed on a floor, for example, is made of aluminum extruded material, and a plurality of dovetail grooves 5 are provided on both side surfaces thereof.
Are formed symmetrically. A pair of left and right base frames 4 are arranged, and the inner surfaces facing each other at predetermined intervals in the length direction are connected by a connecting member 6 using the dovetail groove 5, so that both base frames 4 are They are integrated at a predetermined interval in the width direction. Further, the base frame 4 is installed on the floor via legs 7 provided at predetermined intervals.

A traveling rail 10 for guiding the traveling carriage 1
Is made of aluminum extruded material, and a plurality of dovetail groove portions 11A and 11B are formed symmetrically on the both side surfaces from the top to the bottom, and a concave groove 12 is formed in the middle portion.
A and 12B are formed. The traveling rail 10 is arranged in a monorail type above the pair of base frames 4, and the rail support is provided at a plurality of positions in the longitudinal direction.
It is supported on the side of the base frame 4 via 15.

The rail support 15 is formed in an inverted J shape by a vertical connecting portion 16 and a horizontal base portion 17. And the upper part of the connecting part 16 is a flat plate part in the vertical direction.
The convex portion 19 is formed on the outer surface of the flat plate portion 18 and can be fitted into the concave groove 12B, and bolt holes are formed at a plurality of locations around the convex portion 19.

In order to support the traveling rail 10 on the side of the base frame 4 via the rail support 15, first, the rail support 15 is erected at a predetermined position. This can be done by screwing the bolt 20 passed through the base portion 17 from above onto the connecting member 6 side. In order to connect the side surface of the traveling rail 10 to the upper portion of the connecting portion 16, the plate nut 21 is positioned in the dovetail groove portion 11B, the convex portion 19 is fitted into the concave groove 12B, and the flat plate portion 18 is attached. This can be done by bringing the side surfaces into contact with each other and screwing the bolt 22 which is passed through the bolt hole from the lateral outside from the plate nut 21.

The traveling rail 10 is arranged in an elliptical shape, and thus the fixed route is a pair of parallel straight line route portions 25 and a semicircular curved route connecting the start and end of these straight line route portions 25. Formed from section 26. A vertical path portion 27 for down and up is formed at a predetermined position of the linear path portion 25.

On one side surface of the traveling rail 10, that is, on a side surface opposite to the connecting surface of the rail support 15, the linear motor 30 can be freely repositioned in the rail length direction by utilizing the dovetail groove portion 11A. Installed on.

That is, a mounting bracket 31 is provided on the back side of the linear motor 30, and a bolt hole is formed in this mounting bracket 31. Then, with the plate nut 32 slidably positioned in the dovetail groove portion 11A, the linear motor
The linear motor 30 can be attached to one side surface of the traveling rail 10 by abutting the mounting bracket 31 of 30 on one side surface and then screwing the bolt 33, which has passed through the bolt hole from the outside, into the plate nut 32. .

At this time, by loosely tightening the bolt 33, the linear motor 30 can be repositioned in the rail length direction while sliding the plate nut 32 inside the dovetail groove portion 11A. The desired installation can be performed by tightening the bolt 33 strongly after reaching the position.

A feeding rail 35 is provided on the other side surface of the traveling rail 10 by utilizing the dovetail groove portion 11B. That is, a protective rail 36 is provided on the other side surface of the traveling rail 10, and the protective rail 36 is fixed to the other side surface of the traveling rail 10 via a nut 37 and a bolt 38 provided in the dovetail groove portion 11B.
On the outer surface of the protection rail 36, four power supply rails 35 each including a three-phase AC power supply line and a ground line are provided.

Next, the traveling carriage 1 will be described. The traveling carriage 1 includes a main body 40 guided by the traveling rail 10 and a sorting conveyor 60 provided on the upper portion of the main body 40. The main body 40 has a C-shaped frame when viewed from the traveling direction.
It has a pair (plural) of 41 in the traveling direction. That is, both frames 41 are formed in a C-shape by an inverted L-shaped member 42 and a horizontal member 44 integrated with the lower end of the inverted L-shaped member 42 via a fixture 43. Then, the front and rear edges of the rectangular plate-shaped secondary conductor 45 are fixed to the inner surface of the vertical rod portion of the inverted L-shaped member 42 by a fixing tool 46, and the front and rear edges of the plate 55 are inverted L.
By being fixed to the upper surface of the lateral rod portion of the shaped member 42 by the fixing tool 56, the both frames 41 are integrated via the secondary conductor 45 and the plate 55 with a predetermined interval in the traveling direction.

An upper bracket 48 is rotatably provided at the end of the horizontal rod portion of each inverted L-shaped member 42 via a vertical pin 47,
In these upper brackets 48, a pair of left and right lateral shake preventing rollers 49 that can freely come into contact with both upper side surfaces of the traveling rail 10,
An upper roller 50 is provided which can come into contact with the upper surface of the traveling rail 10.

A lower bracket 52 is rotatably provided at an end of the horizontal member 44 via a vertical pin 51. The lower bracket 52 is abuttable on both side surfaces of the lower portion of the traveling rail 10. A pair of left and right lateral shake preventing rollers 53 and a lower roller 54 that can come into contact with the lower surface of the traveling rail 10 are provided.

The sorting conveyor 60 provided on the upper portion of the main body 40 constructed as described above comprises a pair of front and rear frames 61 and a conveyor device 62 arranged between the frames 61. The conveyor device 62 transmits a drive pulley 63, a driven pulley 65, an endless belt 65 stretched between the pulleys 63 and 64, a servo motor 66, and the rotation of the servo motor 66 to the drive pulley 63. It is composed of a transmission device 67 and the like.

A downward chassis 70 is arranged between the other ends of the frames 61, and an optical transmission unit 71 for exchanging signals with each sorting chute 3 side is provided on the outer surface side of the chassis 70. A controller 72 is provided. Also, the inverted L-shaped member 42
A servo amplifier 73 is arranged on the outer surface of the vertical rod. The control device 72, the servo amplifier 73, and the servo motor 66 are appropriately connected.

The traveling vehicles 1 configured as described above are connected to each other by the connecting device 75 and travel on a fixed route in the form of an endless train. That is, the connecting device 75 includes the vertical pin 47 at the rear end of the preceding traveling vehicle 1 and the vertical pin 47 at the front end of the following traveling vehicle 1.
It is provided between 47 and the connecting rod 76 with adjustable length.
The desired connection is made by connecting both ends of the to the vertical pins 47, 47 via the ball bearings 77, 78.

In the traveling carriage 1 group, a metal cover 80 (aluminum or the like) is continuously connected to the upper end of the front frame 61 of the succeeding traveling carriage 1 toward the front, and this connection is performed by the fixture 81. . Further, a soft resin cover 82 (soft vinyl chloride or the like) which can be freely placed on the metal cover 80 is continuously provided on the upper end of the rear frame 61 of the preceding traveling carriage 1 so as to be directed rearward, and this continuous connection is provided. Is performed by the fixture 83. Here, the both covers 80, 82 are formed with inclined surfaces 84, 85 which are cut at the free end of the one side of the covers 80, 82 facing the center of the curve of the curve path portion 26 on the main body 40 side.

As shown in the circuit configuration of FIG. 6, the traveling vehicles 1 form a group of every five vehicles, and only the leading traveling vehicle (hereinafter, referred to as a parent vehicle) 1A in the traveling direction A has its group. Servo motor 66 from the power supply rail 35 to the upper bracket 48.
A collector 88 for receiving power is provided (Fig. 3)
reference). Then, power is supplied from the parent trolley 1A to another traveling trolley (hereinafter, referred to as a child trolley) 1B of the group via a wiring line 89.

As shown in FIG. 3, the base frame 4
From the top to the top, covering the sides of the fixed path
90 are lined up. 91 is a carry-in conveyor, and the load 2 is carried in with the carry-in conveyor 91 connected to the sorting conveyor 60. Reference numeral 92 represents a wiring duct.

In the above embodiment, the traveling vehicle 1 travels at a predetermined speed on a certain route by utilizing the attractive force and repulsive force of the magnet by the linear motor 30 and the secondary conductor 45. Then, while the power supply for the servo motor 66 is being received from the power supply rail 35 via the collector 88 or the wiring line 89, the control device
In response to the signal transmitted from the optical transmission unit 71 to the optical transmission unit 71, the servo motor 66 is rotated forward or backward through the control device 72, so that the load 2 on the belt 65 can be discharged to the sorting chute 3. The load 2 is carried in from the carry-in conveyor 91 to the sorting conveyor 60.

During running, the metal cover 80
Since the space between the front and rear traveling carriages 1 is filled with the resin cover 82 and the resin cover 82, it is possible to prevent the load 2 from falling off and dust from entering, and at that time, the strength of the overlapping portion is secured by the metal cover 80. You can

Further, when the traveling is on the curve path portion 26, the metal covers 80 can be prevented from colliding with the frame 61 of the conveyor device 62 by the inclined surfaces 84 and 85 cut on the curve center side. In addition, traveling is vertical route section 27
In such a case, the change in the relative angle between the covers 80 and 82 can be absorbed by the elastic deformation of the resin cover 82, and the overlapping posture is maintained.

In the above embodiment, the inclined surfaces 84 and 85 are formed by cutting only the center side of the curve, but this may be cut on both sides when the curve is made left and right. The traveling vehicle 1 may be driven by a method other than the linear motor method.

[0031]

According to the present invention having the above-mentioned structure, during traveling, the metal cover and the resin cover are superposed to fill the space between the front and rear traveling carriages, and the load that had a bad influence on traveling is dropped. It is possible to prevent dust and dirt from entering, and at that time, the strength of the overlapping portion can be secured by the metal cover. Further, when the traveling is a curved route portion, the inclined surface cut to the center side of the curve can prevent the metal cover from colliding with the adjacent traveling carriage, and when the traveling is the vertical route portion, The change in the relative angle of the cover can be absorbed by the elastic deformation of the resin cover, the overlapping posture can be maintained, and the traveling can be smoothly performed in any route.

[Brief description of the drawings]

FIG. 1 is a side view of an essential part of a load carrying device according to an embodiment of the present invention.

FIG. 2 is a plan view of a main part of the load carrying device.

FIG. 3 is a partially cutaway front view of the load carrying device.

FIG. 4 is a schematic side view showing the entire route.

FIG. 5 is a schematic plan view showing the entire route.

FIG. 6 is a power supply circuit diagram of the same cargo carrier.

FIG. 7 is a partial perspective view of the cargo transport apparatus.

[Explanation of symbols] 1 traveling carriage 1A parent carriage 1B child carriage 2 load (transported object) 10 traveling rail 11A dovetail groove section 11B dovetail groove section 12A concave groove 12B concave groove 15 rail support 25 straight path section 26 curved path section 27 vertical path Part 30 Linear motor 31 Mounting bracket 35 Power supply rail 36 Protective rail 40 Main body 41 Frame 45 Secondary conductor 60 Sorting conveyor 61 Frame 62 Conveyor device 66 Servo motor 72 Control device 80 Metal cover 82 Resin cover 84 Slope 85 Slope 88 Collector 89 Wiring line

Claims (1)

(57) [Claims] 1. A traveling carriage group that travels on a fixed route in a state of being connected to each other is provided, and a metal cover is continuously provided from one of the traveling carriages adjacent to each other in the front and rear of the traveling carriage group toward the other. At the same time, a soft resin cover that can be placed on the metal cover from the other traveling dolly toward one side is continuously provided, and both covers cut at least one half on the dolly main body side at their free ends. A load carrying device formed on the inclined surface.