JPS6130972Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention proposes a support device for a belt conveyor that is light, inexpensive, and has no bending in the center.

2. Description of the Related Art Belt conveyors having a width larger than the roller diameter are used in seedling feed devices of rice transplanters, paper feed devices of office machines, and the like.

If the rollers that drive and guide the conveyor belt are made of resin, they will be solid rollers, making them heavy and expensive.If they are made of iron, they can be made hollow, but they will also be expensive and heavy.

This idea divides the roller into three parts and hollows out the shaft center from the seam side, thereby reducing material costs and making it inexpensive and lightweight. 3 on the central central wall
By supporting the assembled rollers around the shaft at each location, the center of the rollers can be eliminated and the wall thickness of the rollers can be further reduced, thereby realizing an extremely lightweight and inexpensive support device for a belt conveyor. be.

Next, the supporting device for the belt conveyor with this invention will be explained based on the seedling feeding device in the rice transplanter shown in the drawing. 1 is the middle roller, which is a molded product of synthetic resin, and the shaft center part is empty from the left and right. The cylinders 2 and 2 are hollowed out to form a cylinder 3, and supported on a shaft 5 by a central wall 4 remaining in the center. Reference numerals 6 and 6 designate a pair of left and right outer rollers, which, like the middle roller 1, are molded from synthetic resin, and the shaft center portion is hollowed out from the center side into a cavity 7, 7 to form a cylinder 8, 8. , supported on the shaft 5 by the remaining outer walls 9, 9, and the cylinders 8, 8
The inner end of the roller 1 is bonded and fixed to the outer end of the cylinder 3 of the middle roller 1.

In the figure, the central portions of the outer walls 9, 9 are bosses 10, 10 projecting outward, and pins 11, 11 are attached to the bosses 10, 10 and the shaft 5, so that both rotate together. Further, engagement holes 12, 12 are formed at the inner ends of the cylinders 8, 8, and claws 13, 13 formed at both ends of the cylinder 3 are fitted into the engagement holes 12, 12 from the axis side. Therefore, the middle roller 1 and the outer rollers 6, 6 are made to be integrated. When implementing this, it is possible to tighten the three parts with screws in the axial direction or glue them together, but if the structure is configured as shown in the figure, the processing cost for each unit will be the same, and the assembly will be easier. It was extremely simple and significantly reduced assembly man-hours.

Reference numeral 14 in the figure is a belt conveyor, which is equipped with a large number of feed protrusions 15, 15... on the outer surface, and V-belt-shaped driving strips 16, 16 at both ends of the inner surface are connected to the V-grooves 17 of the outer rollers 6, 6. , 17, and is wound around a pair of assembled rollers.

18 is the seedling stand of the rice transplanter, and belt conveyor 1
The shaft 5 is supported so that the upper surface of the shaft 4 protrudes above a part of the surface.

The belt conveyor configured in this way has a shaft 5.
The rotation is transmitted to the bosses 10, 10 via the pins 11, 11, and when the outer rollers 6, 6 and the middle roller 1 rotate, the belt conveyor 14 rotates, and the seedlings placed thereon are moved at a predetermined speed. will be sent out.

Traditional rollers are made of solid plastic or hollow steel. Therefore, it was heavy and expensive.
In comparison, according to this invention, the roller is made of hollow resin, and the center part of the roller is also supported on the shaft 5 by the center wall 4, so the thickness of the cylindrical part can be made thinner. This roller does not bend. Therefore, there is a feature that the roller can be constructed even more lightweight and at low cost.

[Brief explanation of the drawing]

Figure 1 is a slope view looking up from below the seedling stand in a rice transplanter using this invention, Figure 2 is an enlarged cutaway front view of a portion of it, and Figure 3 is an exploded cutaway front view of the roller. , FIG. 4 is a plan view thereof, and FIG. 5 is a left side view thereof. The symbols in the figure are as follows. 1...Middle roller, 2...Cavity, 3...Cylinder, 4...Central wall, 5
...Shaft, 6...Outer roller, 7...Cavity, 8...
Tube, 9...outer wall, 10...boss, 11...pin,
12...Engagement hole, 13...Claw, 14...Conveyor belt, 15...Protrusion, 16...Driving line, 17...
...V groove.

Claims (1)

[Scope of utility model registration request] It is equipped with a shaft, a middle roller, and a pair of left and right outer rollers. A belt conveyor characterized in that the core is hollowed out from the inside and supported on a shaft by the remaining outer wall, and the inner end of the cylindrical part is bonded and fixed to the outer end of the cylindrical part of the middle roller. Supporting device.