JPS6144548Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for joining the flooring materials in a truck loading platform, particularly in a truck loading platform in which the loading platform floor is formed by arranging a large number of horizontal joist flooring materials made of extruded aluminum. It is.

The purpose of this invention is not only to make it possible to easily and reliably join the floor materials made of shaped materials to each other in the truck loading platform as described above, but also to prevent the flatness of the floor surface from being impaired due to separation or lifting of the joined portions of the floor materials. To provide a flooring joining device that can effectively prevent damage to floorboards, and also allows the flooring to be easily removed and replaced with a new one in the event of damage such as scratches or dents on the flooring. This is what I am trying to do.

Therefore, in this invention, a large number of shaped flooring materials 3 having mounting legs 9 on the lower surface of the floorboard portion 7 are attached to the vertical joists 2.
In a truck loading platform in which a loading platform floor 1 is formed by being arranged and fixed on top of each other, the flooring material 3 is provided on one side edge of the floor plate portion 7, and extends outwardly from the lower surface thereof and has a cross-sectional shape facing downward. On the other hand, on the other side edge, there is an upper protrusion 13 extending from the floor plate part 7 and protruding outward, and below the upper protrusion part 13, the protrusion part 13 of the floor plate part 7 is provided. A lower projecting piece 1 extending outward from the lower surface side with a substantially L-shaped cross section
4, a substantially corresponding joining recess 11 into which the joining projection 10 can be loosely fitted is provided between them, and by sequentially fitting the joining projection 10 and the recess 11, , the adjacent flooring materials 3, 3 are joined together, and the upper protruding piece 13 has a downwardly bulging circular enlarged part 13a at its tip, thereby forming an entrance part of the joining recess 11. is smaller than the inner part, so that the joining projection 10 is prevented from coming out in the horizontal direction, and furthermore, the joining projection 10 and the recess 11 are not joined in their fitted state. A gap (l, l2) is formed between the flooring materials 3 and 3 that allows relative movement of a predetermined distance between the adjacent flooring materials in the horizontal plane, while a distance above the tip of the convex portion 10 A gap portion 15 is formed between the gap portions 15, and the presence of the gap portion 15 causes the adjacent flooring materials 3, 3 to be moved upward in the above-mentioned bonded state.
The object of the present invention is to provide a flooring joining device for a truck loading platform, which is characterized by being configured to be bendable in a letter shape.

The configuration of this invention will be further explained below based on the illustrated embodiments.

Figure 1 shows the loading platform of a truck.
On the vertical joists 2, 2 made of a pair of channel shapes,
It is formed by arranging a large number of horizontal joists and flooring materials 3 made of extruded aluminum materials. On both the left and right sides of this loading platform floor 1,
A side frame 4 also made of extruded aluminum is arranged and fixed to the flooring 3, and a side tilt 5 is attached to the outer surface of the side frame 4 so as to be able to rise and fall.

As shown in FIG. 2, the floor material 3 has one or more supporting legs 8 having an inverted T-shaped cross section on the lower surface of the upper floor plate portion 7, and has an inverted cross section on the lower surface of one side edge. L-shaped mounting legs 9 are provided, and joining projections 10 formed on both side edges of the floorboard section 7 and recesses 11 having substantially corresponding shapes are fitted in sequence. By this, the adjacent flooring material 3,
3 are joined together. In addition, the mounting leg 9 has a horizontal mounting plate 9a projecting outward from its lower end that is connected to the vertical joist 2 by means of bolts and nuts 12.
is fixed to the upper wall. By the way, as shown in detail in FIG. 3, the joining convex part 10 is provided to protrude outward from the lower surface of one edge of the floor plate part 7, and its cross-sectional shape is curved downward. The tip 10a is formed into a substantially arcuate shape, and the tip 10a is rounded.

On the other hand, the joining recess 11 is provided on the other side edge of the floor plate part 7 in a part connected to the mounting leg part 9, and is an upper protrusion extending from the floor plate part 7 and protruding outward. It is formed between the piece 13 and a lower projecting piece 14 which projects from the lower surface side of the floorboard 7 below the piece 13 and has a substantially L-shaped cross section. The upper protruding piece 13 has a circular bulge 13 bulging downward at the tip.
a, thereby making the entrance part of the joining recess 11 narrower than the inner part, and making the joining convex part 10 smaller.
In the fitted state, this can be prevented from coming off in the horizontal direction. Also,
The inner part of the joining recess 11 is the joining convex part 1.
By being formed to be larger and wider than the tip of 0, an intermediate portion 15 can be formed above the tip of the protrusion 10 when the joining protrusion 10 is fitted thereto. And during this time part 15
2, it is possible to bend the adjacent flooring materials 3, 3 upward in an inverted V-shape while maintaining the bonded state as shown in FIG. 2 by chain lines. Furthermore, the joining recess 11 and the joining protrusion 10 are allowed to move slightly relative to each other in the horizontal direction when they are fitted together. That is, as shown in FIG. 3, in a state where the upper surface of the distal end of the joining convex part 10 is brought into almost contact with the lower surface of the enlarged part 13a on the joining concave part 11 side, the distal end 10a of the upper convex part 10 and the concave part 11 are in contact with each other. A predetermined horizontal distance 〓l1, l2 is created between the bottom surface and between the floor plate end face 7a on the side of the convex part 10 and the upper protrusion piece 13 on the side of the recessed part 11, and during this time 〓l1, l2 With this, the mounting position of the adjacent floor materials 3, 3 can be finely adjusted in the front-rear direction.

In the above, the flooring materials 3 are installed sequentially starting from the front end of the loading platform floor 1, or sequentially starting from the rear end. Therefore, when attaching the adjacent flooring material 3 to the flooring material 3 that has been previously fixed to the vertical joists 2, first, the flooring material 3 is placed in a slightly slanted state and its joining convex portion 10 or the same concave portion is attached. 11 to the mating recess 11 or convex portion 10 of the other party.
Then, while the flooring 3 is laid down horizontally, the joining protrusion 10 and the recess 11 are completely fitted to achieve mutual joining of the flooring 3, and then the mounting legs are The portion 9 is fixed to the vertical joist 2 with bolts and nuts 12.

This invention is based on the above-mentioned method, and consists of connecting convex portions 10 for joining adjacent flooring materials each having an arcuate cross section and a recessed portion 11 for joining each other having a substantially corresponding shape. Since they are joined by fitting, not only can the joining operation be easily performed as described above, but also they cannot be separated from each other either in the front-rear direction or in the vertical direction after joining. Therefore, a reliable bonding state can be achieved.
In particular, the flooring 3 has one side edge of the floorboard portion 7.
An arcuate joining convex portion 10 is provided on the other side edge, extending outward from the lower surface and having a downwardly curved cross-section. The joining protrusion 10 is loosely fitted between the upper protruding piece 13 and the lower protruding piece 14 extending outward from the lower surface of the floor plate 7 below the protruding piece 13 and having a substantially L-shaped cross section. A bonding recess 11 having a shape substantially corresponding to that of the bonding convex portion 1 is provided.
0 and the same concave portion 11 are fitted in sequence, the adjacent flooring materials 3, 3 are joined together, and the upper protrusion 13 has a circular enlarged portion 13a that bulges downward at the tip. As a result, the entrance portion of the joining recess 11 is made narrower than the inner part, and the joining projection 10 is prevented from coming out in the horizontal direction. The fitting structure of the concave portions 11 alone can prevent the flooring materials from being separated from each other in both the vertical and horizontal directions. Moreover, since the joint structure parts that connect the flooring materials to each other are provided on both side edges of the floorboard section 7 itself, the floorboard sections 7 and 7 can be easily connected to each other even by diagonal loads or impacts applied to the floor surface of the loading platform. The connected state can be maintained reliably, and it is possible to use the conventional simple parallel method (for example, the specification of British Patent No. 1346760) or the actual method (for example, Fig. 7 of Japanese Utility Model Application Publication No. 56-25668).
In some cases, such as those that adopt a joining structure of There is no possibility that the edge of 7 will be lifted up and the flatness of the loading platform will be compromised.
It can permanently maintain a normal floor surface condition and has excellent durability. In addition, since the above-mentioned reliable joining can be achieved only by the joining convex portions 10 and concave portions 11 on both side edges of the floorboard parts 7, 7, for example, separate joint structure parts can be provided at multiple locations above and below the flooring material. Compared to the case where a flooring material is provided, it is possible to prevent an increase in the cross-sectional area of the flooring material and reduce the material cost.

Moreover, the joining convex portion 10 and the concave portion 11 are
In their fitted state, there is a distance of 〓l between the flooring materials.
1, l2 are assumed to be formed,
Due to the presence of the gaps l1 and l2, the adjacent flooring materials 3, 3 that are joined together can be finely adjusted in the longitudinal direction, and dimensional errors and installation errors of the flooring materials and vertical joists can be absorbed.

Furthermore, if any of the many flooring materials 3 that make up the loading platform floor 1 is dented or damaged, you can easily remove only that flooring material 3 as follows and replace it with a new one. It is possible to replace it with something else. That is, the fixing bolts and nuts 12, 12 of the specific flooring material 3 to be removed and one of the adjacent flooring materials 3 are removed, their fixation to the vertical joists 2 is released, and then both flooring materials 3 are removed. , 3 upward. Then, the joining convex part 10 in the joint part enters the bottom part 15 between the concave part 11,
As shown by the chain line in FIG. 3, both the flooring materials 3, 3 are bent in an inverted V shape, and in the process, the joining convex portion 10 and the concave portion 1 on the lower edge of the flooring materials 3, 3 are bent.
1 can escape from the bonding recess 11 and convex portion 10 of the flooring 3 to which it remains fixed. Therefore, only one of the required flooring materials 3 can be removed from the loading platform floor 1 by uncoupling it from the adjacent flooring materials 3, 3. Then, after replacing it with a new one, the operation of reattaching it can be performed by following the procedure reverse to the above-mentioned removal procedure. Therefore, it is possible to replace only a specific flooring material without dismantling the loading platform floor 1, and there is an advantage in that if the flooring material is damaged, it can be repaired very easily.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a partially cutaway perspective view of the truck bed;
The figure is a cross-sectional view along the line of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of the floor material joint portion. 1... Loading platform floor, 2... Vertical joists, 3... Flooring material, 7
...Floor plate part, 9... Leg part for mounting, 10... Convex part for joining, 11... Recessed part for joining, 13... Upper protrusion piece,
14...Lower protruding piece, 15...Interval part, l1, l2
...Pause.

Claims (1)

[Claims for Utility Model Registration] A truck in which a loading platform floor 1 is formed by fixing a large number of shaped flooring materials 3 having mounting legs 9 on the lower surface of a floor plate section 7 side by side on a vertical joist 2. In the loading platform, the floor material 3 is provided with an arc-shaped joining convex portion 10 on one side edge of the floor plate portion 7, extending outward from the lower surface thereof and having a downwardly curved cross-sectional shape. On the other hand, on the other side edge, there is an upper protrusion 13 that extends from the floor plate part 7 and projects outward, and below that, a lower protrusion that extends outward from the lower surface side of the floor plate part 7 and has a substantially L-shaped cross section. 14, a joining recess 11 having a substantially corresponding shape into which the joining projection 10 can be loosely fitted is provided between them, and the joining projection 10
By sequentially fitting the same concave portions 11, the adjacent floor materials 3, 3 are joined together, and the upper projecting piece 13 has a downwardly bulging circular enlarged portion 13a at the tip. As a result, the entrance portion of the joining recess 11 is made narrower than the inner part, and the joining projection 10 is prevented from coming out in the horizontal direction. In their fitted state, gaps 〓l1 and 〓l2 are formed between the flooring materials 3 and 3, which allow relative movement of a predetermined distance in the horizontal plane between the joined adjacent flooring materials. On the other hand, a gap part 15 is formed above the tip of the convex part 10, and due to the presence of the gap part 15, the adjacent flooring materials 3, 3 can be connected upwardly while remaining in the above bonded state. A flooring joining device for a truck loading platform, characterized in that it is configured to be bent into an inverted V shape.