JPS5921104Y2 - vehicle floor - Google Patents

Description

[Detailed explanation of the idea] This invention relates to the floors of trucks and freight cars.

Traditionally, for example, wooden boards have been used for the flooring of trucks, but due to the need to reduce the weight of the floor, the rising cost of wood, and the difficulty in obtaining it, recently aluminum shapes (aluminum alloys or industrial pure aluminum shapes) and synthetic materials have been used. Resin profiles are often used as flooring materials.

Methods for attaching these flooring materials to joists include bolting using bolts and nuts, tapping screws,
Although mounting methods such as riveting can be considered, bolting using bolts and nuts is most often used as a reliable mounting method.

However, when tightening bolts using bolts and nuts on the bed of a truck, such as the bed of a 10-ton vehicle, the joists are usually installed at a pitch of 500 mm, and the width of the floor material is about 200 mm. Hundreds of bolts must be tightened.

Moreover, since the truck bed is large, errors occur during assembly, so it is not possible to first drill hundreds of holes and then tighten bolts with bolts and nuts. The disadvantage is that the process of opening the holes and tightening the bolts is repeated hundreds of times, resulting in extremely poor work efficiency for assembling the truck floor.

The purpose of this invention is to eliminate the above-mentioned drawbacks of conventional truck floors and to make the assembly of truck floors efficient and strong.

Next, the floor of this invention will be explained with reference to a drawing.

The flooring 3 has one end 6 of the horizontal wall lowered by the thickness of the other end 7 of the horizontal wall, and is provided with fixing parts 4 projecting outward on both sides of the lower part of the flooring 3 of the horizontal wall.

The upper surface of this fixing part 4 is inclined to have a tapered shape, and fine irregularities 5 are formed on the surface of this inclined surface.

The joist material 1 is provided with a fitting groove 2 for sliding and fitting the fixing metal fitting, that is, a fitting groove 2 in which the bottom part of the fitting groove 2 is wider than the upper part.

The fixing fitting 8 has a sideways H-shaped cross section, has fixing protrusions 9 on both sides of the upper part, and has a groove 2 for fitting the joist material 1 on the lower part.
The fixing protrusions 9, 9 of the fixing metal fitting 8 have a tapered lower surface with an inclined surface, and fine irregularities 11 are formed on the inclined surface.

Several to dozens of these joists 1 are arranged in parallel and the flooring material 3 is placed on top of these joists 1 at almost a right angle, as shown in FIG.
As shown in the figure, the fixing metal fitting 8 is inserted into the fitting groove 2 of the joist material 1.
Insert the fitting part 10 of and slide the lower part of the fixture 8 through the fitting groove 2 of the joist 1 to bring it close to the fixing part 4 of the flooring material 3.
By hitting the inspection fitting with a hammer or the like, the fixing fitting 4 of the flooring 3 and the joist 1 are smoothly attached along the inclination of the fixing part 4 of the flooring 3 and the inclination of the fixing protrusion 9 of the fixing fitting 8. Fix it at 8.

During this fixing, the fine irregularities 5 and 11 provided on the fixing part 4 of the flooring material 3 and the fixing fitting 8 are crushed together to further secure the flooring even more firmly.

Place the lower end 6 of another flooring material 3 under the higher end 7 of the flooring material 3 fixed to the joist material 1, and tap the other flooring material 3 with a hammer or the like to remove the other flooring material 3. The fixing part 4 is fixed with the fixing protrusion 9 of the fixing metal fitting 8.

In this way, on the top of the flooring material 3, at the higher end 7, attach the other flooring material 3.
While holding down the lower end 6 of the flooring material 3, the lower portions of both flooring materials 3, 3 are sequentially fixed to the joist material 1 with fixing fittings 8.

Then, floor frames 12 and 13 are provided at both ends of the flooring materials 3 and 3', which are arranged in parallel on the joists 1 and individually fixed with fixing fittings 8.
Attach the floor frame 12.13 to the joist 1 with a stop plate 14.
Fix with 15, bolts, and nuts.

Furthermore, if necessary, although not shown, frame members or plates are fixed to both ends of the flooring materials 3, 3' in the front and rear directions.

The ones shown in FIGS. 5 and 6 have different joists and fixing fittings, and the one shown in FIG.
is provided, and the groove 19 at the lower part of the fixing metal fitting 18 is slid into and fitted into the protrusion 17.

In the one shown in FIG. 6, projecting horizontal walls are provided at both upper ends of the vertical walls of the joists 20, and the grooves 22 in the lower part of the fixing fitting 21 are slid and fitted into the projections of the projecting horizontal walls.

The vehicle floor of this invention can be fixed to the joist by placing the flooring material on the joists and slidingly fitting the fixing part of the adjacent flooring material and the fixing part of the flooring material with one fixing metal fitting. Compared to conventional bolt tightening using holes, bolts, and nuts, the floor assembly work can be performed more easily and efficiently.

In addition, the upper surface of the fixing part of the floor material is sloped and tapered, and the lower surface of the fixing protrusion of the fixing bracket is sloped and tapered. can be inserted smoothly at first, and gradually the fixing part of the flooring material and the fixing protrusion of the fixing fitting can be firmly fixed.

Furthermore, the vehicle floor of this invention uses the high end of the upper horizontal wall of the floor material to hold down the lower end of the upper horizontal wall of another adjacent floor material, and the fixing parts on both sides of the lower part of the floor material are fixed using metal fittings. Since the flooring is fixed in place, it does not move back and forth, left or right, and the flooring does not float up, making it possible to assemble the floor firmly and allowing it to be used in a stable manner for a long period of time. be able to.

[Brief explanation of the drawing]

Figure 1 is a front view, Figure 2 is an enlarged perspective view during assembly, Figure 3 is a partially enlarged front view during assembly, Figure 4 is a partially enlarged front view,
FIG. 5 and FIG. 6 are perspective views of different joists and fixing fittings, respectively. 1 is a joist material, 2 is a groove, 3 is a floor material, 4 is a fixing part, 8 is a fixing metal fitting, 9 is a fixing projection, and 10 is a fitting part.

Claims (1)

[Scope of utility model registration request] A tapered shape in which one end of the upper horizontal wall of the flooring is lowered by the thickness of the other end of the upper horizontal wall that protrudes, and protrudes outward at the bottom near both ends of the flooring, and the upper surface is sloped. A flooring with a fastening section of 1 is attached to a joist with a longitudinally mating section at a right angle, and at the high end of the upper horizontal wall of the flooring and at the lower end of the upper horizontal wall of another flooring. The fixing part of the adjacent flooring material, the fixing part of the flooring material, and the fitting part of the joist are placed one after another while holding down the edges of the flooring material. A vehicle floor that is sequentially fixed using fixing fittings that have a fitting part at the bottom.