JPS5827880Y2 - Fixed structure of plate rail for bogie running - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the fixing structure of a plate-shaped rail for running a bogie in a bogie conveyor or the like.

The rail for running the bogie of a bogie conveyor such as an under-floor tow conveyor only needs to support the weight of the bogie, and there is no need to guide the wheels like in a railway vehicle, so flat rails are usually used because they are easy to manufacture. There is.

With this flat rail, it is easy to bend both sides of the rail upward to form ribs for reinforcement in the straight section, but
Since the ribs must be welded on the curved portions, the ribs are usually used as a flat plate without any ribs.

In this case, as a floor fixing structure for flat rails on curved sections,
Conventionally, as shown in FIGS. 1 and 2, an anchor 1 was fixed to the floor, passed through a hole in a flat rail 2, and the anchor 1 and the rail 2 were welded together.

However, this fixed structure often causes the rail 2 to extend in a direction perpendicular to the running direction and swell into a mountain shape at room temperature due to the concentrated load from the bogie wheels and the horizontal pressure caused by the lateral displacement of the wheels at curved sections. This causes problems such as the welding to the anchor eventually separating, or the truck being lifted up and disengaged from the conveyor chain, leaving the truck behind.

The purpose of this proposal is to propose a fixing structure for a plate-shaped rail for bogie running that prevents such problems from occurring.

The illustrated embodiment will be described below.

In the embodiments shown in FIGS. 3 and 4, two flat rails 4 having an appropriate width and length are laid on the floor with a joint gap p along the travel locus 3 of the truck wheels, and the rails 4 are laid on the floor with a joint gap p. At the joint and at an appropriate intermediate position, spacers 5 having approximately the same thickness as the rail 4 are placed on both sides of the rail 4 with a gap δ between them and the rail sides, and the spacer 5 and the presser fitting 6 stacked thereon are attached to the floor surface using anchor bolts 7. to fix the rail 4.

8 is a truck wheel.

The gaps p and δ are selected to values that do not restrict the extension of the rail 4 due to loads in the length direction and width direction.

In this case, since the rail 4 can freely extend in both length and width directions at room temperature, no permanent deformation occurs and the rail 4 does not bulge into a mountain shape as in conventional rails.

In addition, the fixing structure shown in FIGS. 5 and 6 has a washer 11 connected to an anchor bolt 10 passing through a hole 9 drilled in the rail 4.
The rail 4 is fastened through.

In this case, the diameter of the hole 9 is made uniform so that a gap corresponding to the gap δ exists between the hole 9 and the bolt 10, and this gap allows the extension of the rail 4 in the length and width direction to be buttoned at room temperature. make you free.

The present invention has the above-mentioned configuration, and since the rail can be freely deformed in any direction at room temperature at the floor fixed part, the deformation becomes permanent deformation, and therefore it bulges in a mountain shape. It has the effect of preventing this, and its structure is extremely simple and inexpensive.

[Brief explanation of drawings]

1 and 2 are a plan view and a sectional view showing the outline of a conventional fixing structure, respectively, and FIG. 3 is a plan view of an embodiment of the present invention.
4 is a cross-sectional view taken along the line A--A in FIG. 3, FIG. 5 is a partial plan view of another embodiment, and FIG. 6 is a cross-sectional view taken along the line B--B in FIG. 4...Flat rail, 5, 6...Fixing metal fittings, 8...
・Bogie wheel, 9... Anchor bolt through hole, 10...
・Anchor bolt, δ...Gap.

Claims (1)

[Scope of utility model registration request] In a flat rail for bogie running on a bogie conveyor used at room temperature, the joint between the flat rail and the fixing fitting that fixes the rail to the floor, or the inner surface of the anchor bolt through hole of the rail 4. A fixing structure for a plate-shaped rail for running a bogie, characterized in that a gap is provided between the anchor bolt and the rail in the surface direction of the rail, which does not restrain deformation of the rail caused by a bogie load and a lateral displacement load of the bogie wheels.