JPH0286509A - Sorter for article - Google Patents

Abstract

PURPOSE:To simplify all the structure of a travel carriage and to make it light by sharing a rail for receiving the vertical load of the travel carriage and a horizontal guide rail to one rail. CONSTITUTION:In a travel carriage 3, wheels 33 moving on rails 1R on both the sides of an upper and front part and horizontal rollers 35 abutting against the rails 1R and supporting the overturn moment of the carriage 3 are provided. On the upper and front side of the carriage 3, a set of connecting means 36 for connecting a forward carriage 3 by a ball joint are provided. The rails 1R receive the vertical load of the travel carriage 3 and operates as a horizontal guide rail, so that the entire height of the travel carriage 3 can be reduced, all the structure of the travel carriage 3 can be simplified and made light. Since a connection between the carriages 3 is made by the use of a ball joint and the connected position is situated at the same place as a wheel, so that a stable travel can be attained even in a curved path.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an article sorting device that has a simple structure, is lightweight, has low noise, and is suitable for energy saving.

[Conventional technology]

Conventionally, in a device that sorts items such as parcels and letters into their destinations and other areas, an endless conveyance line is installed, and a supply line and a sorting line are installed at arbitrary points on this conveyance line, and a large number of lines are placed on the line. The tray cart is connected to a chain conveyor, and the tray cart is running. Therefore, the driving of the chain conveyor generates a lot of noise, and the structure is complicated.

For this reason, methods of driving the tray cart with a linear motor are proposed, for example, in Japanese Patent Application Laid-open Nos. 57-137218 and 60-41584.
No. 63-165218.

[Invention tries to solve! ! Title]

As the overall size of the sorting room H, which has a large number of tray carts connected together, increases, the equipment becomes expensive if the structure of the tray cart is complicated, and the power required to drive the tray carts also inevitably increases, making it difficult to save energy. There's a problem.

[Means to solve the problem]

There is a silk connector on the front side of the upper part of the traveling truck that connects it to the front traveling truck with a ball joint, and wheels that move on rails on both sides of the upper front side of the traveling truck, which come into contact with the rails and reduce the overturning moment of the truck. and a horizontal roller that supports the.

〔Example〕

FIG. 1 and FIG. 2 show a schematic overall view of the article sorting device, and this loop-shaped running path is one example, and the shape is not limited to this.

Next, a description will be given based on the embodiments shown in FIGS. 1 and 2.

The loop-shaped running path 1 is supported by frames 1b disposed at required intervals below the running rail 1a, and is bent and inclined at both ends 1x of the running rail 1a. The other portions are horizontal straight paths IY and IZ, and these straight paths IY and IZ are vertically arranged in parallel, and the running rail 1a forms a loop shape as a whole. And this upper straight line HJY and the lower straight line L
In Z, a large number of sorting shoes 2a, 2b, . One or more transfer conveyors 4a, 4b, . . . are arranged at the upper transfer position, and a plurality of traveling carts 3, 3, . * are arranged, and the adjacent traveling bogies 3 and 3 are connected to each other in a swingable manner, and all the traveling bogies run at the same time. The traveling of this traveling trolley a is carried out by several linear motors 6 arranged at appropriate intervals at one end of the traveling path 1, for example, at the end opposite to the transfer conveyor. A large number of traveling carts loaded on a traveling path 1 are simultaneously transferred. Two or three of these linear motors 6 are installed at the end of the straight road lZ so that the running bogie on the running path is pushed up the inclined curved road. Two or three linear motors 6 are arranged at the ends of the upper straight road IY so as to give the same, and several linear motors 6 are arranged at the ends of the upper and lower straight roads near one of the curved roads.

Here, the linear motors were distributed and arranged in several units.
By arranging them in a distributed manner, it is possible to reduce the tension in the van connection part, making the structure of the van connection part smaller and lighter, as well as distributing the tension and reducing the capacity of the linear motor. This is to do so.

Note that the running speed and braking of the traveling carriage are controlled by this linear motor 6.

In addition, in order to drive the traveling truck more efficiently with this linear motor 6, as shown in FIG. A linear motor 6 is installed, and these two
In other words, the near motor 6 is configured to apply thrust from both sides of the rear crayon plate 310 at the same time. Moreover, the linear motor 6 is fixed to the frame of the running path.

The traveling bogie a is shown in Figures 3 and 4. This running trolley 3 is divided into an upper unit (3A) which mainly carries out loading and unloading, and a lower unit (3B) which mainly carries out traveling and connection between the carriages.
The lower unit 3B is made compatible so that it can be used in conjunction with any other unit. By making the lower unit 3B common and making the shape of the upper unit 3A according to the type of article, it becomes possible to sort various articles.

The traveling bogie 30 lower unit) 3B has a reaction plate 31 vertically disposed at the center of the lower part of the bogie main body 30 having a predetermined size along the running direction of the bogie, and also has a reaction plate 31 installed on the front side of the bogie main body 3o in the running direction. Boss parts 3 on both sides
2.32 is provided protrudingly, and a wheel 33.
A horizontal roller 35.3 is rotatably supported by a shaft 34.34 which projects vertically below the boss portion 32.
5 rotatably supported, and this wheel 33
and the horizontal roller 35 are supported by the same rail IR. That is, the wheels 32 are in contact with the top surface of the rail IR and can run while supporting the entire load applied to the lower unit and the upper unit, and the horizontal rollers 35 are in contact with the top surface of the rail IR.
This supports the overturning moment applied to the truck when the truck is traveling or stopped, and allows the traveling truck to stably maintain a predetermined posture. These wheels 32 and horizontal rollers 35 are provided in pairs on each side of the front side of one lower unit, so that the traveling truck maintains its posture stably even if an overturning moment is applied to either the left or right side. It is something.

Furthermore, a connecting tool 36 such as a ball joint is provided protruding from the front central part of the truck body 30, and a connecting frame 37 is provided by the connecting tool 36 and protruding from the center of the rear side of the truck main body 30 adjacent to the front. The front and rear truck bodies 30 and 30 are connected to each other so that they can be bent vertically and horizontally within a permissible angle.

Brackets 38 and 38 that connect to the upper unit 3A are integrally provided on the upper part of this truck body 30, and the bracket 38 and the bracket 41 provided at the lower part of the upper unit 3A are joined together by bolting or the like. is combined with

The upper unit) 3A has a carriage frame 40 having the required size and shape, and has a bracket 41 connected to the lower unit 3B at the lower part thereof, and a hinge 45 at the upper part of the shaft 43 supported by a van support bracket 42. A bun 44 is provided via the hinge 45 or directly on the shaft 43 so as to be swingable and tiltable. The van 44 may have a figure 7 shape or other shape to ensure reliable transfer of items. Brackets 42, 42 are protruded from the rear sides of both side plates of the van 44, and the lower ends of these brackets 42, 42 are brought into contact with support rollers 46 movably provided on the carriage frame 40, and this support Bracket 42 with roller 46
are supported in contact with each other to prevent tilting of the van 44,
Position the van at the solid line position in Figure 3. This support roller 46 is rotatably supported by the carriage frame 40, a restoring spring is attached to the support shaft of the bracket support roller 46, and a lever 47 is provided at the shaft end of the support roller. By pressing , the support roller 46 is tilted via the roller support shaft, and when the support roller 46 is tilted, the contact with the bracket 42 is released and the bang 44
can be tilted freely. At this time, the main body 30 is provided with a shock absorber 48 that abuts and supports the rear surface of the van so that the tilting of the van stops at a predetermined angle.

As mentioned above, in order to connect two or more traveling bogies 3 to each other by joining the lower unit) 3B with the upper unit) 3A of a desired shape, the connecting frame 37 of the front bogie body 30 and the rear bogie are connected. The connecting tool 36 of the main body 30 is connected by a ball joint so as to be freely swingable. In this way, they are successively connected. At this time, only a pair of left and right wheels are installed on the front side of the bogie body, but as the front and rear bogie bodies are connected, wheels 33° and 33 are located below the connection, respectively, so that the front and rear wheels The load applied to the entire truck is supported by the wheels 33. In addition, the horizontal rollers protruding from both sides of the front of the truck body are wider than before, so they act efficiently against the overturning moment of the truck, improving accuracy and making it possible to contact the guide rail without any gaps.

〔Effect of the invention〕

According to the present invention, since one rail can serve as both the rail that receives the vertical load of the running bogie and the horizontal guide rail, the height of the entire running bogie can be lowered. Since the structure is simple and lightweight, it can be made at low cost, and the power required to drive the traveling bogie can be reduced, resulting in an energy saving effect. Furthermore, since the horizontal rollers have a structure in which the two upper parts are suspended, the overturning moment can be supported with precision, and the two horizontal rollers can be pressed against the rail without any gaps. In addition, there are two wheels per running bogie, and the wheels of the front and rear bogies are also used, so the structure is simple and helps reduce weight, and the bogie connection part is connected with a ball joint. It is also possible to drive on curved sections. Also, since the connecting part is in the same position as the wheel, stable driving can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the traveling path, FIG. 2 is a front view thereof, FIG. 3 is a front view of the traveling carriage of the present invention, and FIG. 4 is a side view thereof. IR is a rail, 3A is an upper unit, 3B is a lower unit, 3 is a traveling truck, 30 is a truck body, 31 is a reaction plate, 33 is a wheel, 35 is a horizontal roller, 36
37 is a coupling frame, 38.41 is a bracket, a carriage frame, and 44 is a van. 40 is Ki Figure 4 Figure 3

Claims (2)

[Claims] (1) A plurality of sorting chutes are arranged on the sides of the straight part of the loop-shaped traveling path, and a large number of traveling carts equipped with tiltable vans are disposed on the traveling path so that they can be driven by linear motors, In an article sorting device in which adjacent running carts are movably connected and all the moving carts are simultaneously driven by a linear motor, a ball joint is connected to the front moving cart by a ball joint on the front side of the upper part of the moving cart. This article sorting device is provided with a pair of connectors to be connected, wheels that move on rails on both sides of the upper front side of a traveling truck, and horizontal rollers that come into contact with the rails and support the overturning moment of the truck. (2) The article sorting device according to claim 1, wherein the traveling carriage is assembled by being divided into an upper unit mainly for loading and discharging articles, and a lower unit mainly for connecting the carriages and a traveling device.