JP2003327171A - Floor panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight, inexpensive floor panel that reduces labor and time required for assembling the cargo bed of a truck further than before and can easily cope with change in the length of the cargo bed. <P>SOLUTION: The floor panel 16 is spread onto a chassis frame flatly for forming the bed of the truck, and is subjected to extrusion so that a box-shaped outer shell with both sides in a width direction open is provided and a number of ribs 16c that vertically connect a top board section 16a to a bottom board section 16b and are extended in the width direction are formed inside the outer shell. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel for forming a truck bed.

[0002]

2. Description of the Related Art Generally, as a truck carrier, a demand for a carrier capable of opening the entire side surface of the body speedily has been strong, and a wing body type carrier is one that satisfies these requirements.

FIG. 7 shows an example of a wing body type truck carrier. In the example shown here, the front wall 4 is provided at the front end of the floor 2 of the carrier 1 along the rear surface of the cab 3. And a rear gate frame 6 to which a double door type rear door 5 is attached at the rear end of the floor 2 of the luggage carrier 1, and further, a tilt 7 at the left and right ends of the floor 2 of the luggage carrier 1.
A pair of left and right wing groves 8 that can be opened and closed and that covers the upper surface and side surfaces between the front wall 4 and the rear gate frame 6.
Are opened and closed by the operation of the hydraulic cylinders 9, respectively. There is also a type called a full wing type in which the lower ends of the left and right wing groves 8 are extended to the left and right ends of the floor 2 of the luggage carrier 1 respectively without the tilt 7.

Conventionally, as shown in FIG. 8, the floor 2 of the loading platform 1 has a U-bolt (not shown) having a vertical joist 12 through a spacer 11 on a chassis frame 10 extending in the vehicle front-rear direction.
And the like, and a plurality of lateral joists 14 as strength members extending in the vehicle width direction are arranged on the vertical joists 12 at predetermined intervals in the vehicle front-rear direction and tightened and fixed with bolts or the like, An underseat 13 for waterproofing is laid on the lateral joists 14, and a large number of floor plates 15 such as APITONs extending in the vehicle front-rear direction are laid in the vehicle width direction.

[0005]

However, in the floor structure of the conventional truck carrier 1 as described above, after assembling a plurality of horizontal joists 14 to the vertical joist 12, a large number of floor boards are attached to the lateral joists 14. Since it has a structure for assembling 15, the assembly work requires a great deal of labor and time, and has a drawback that a rise in manufacturing cost cannot be avoided, and moreover, when changing the length of the loading platform 1. There is also a problem that it is necessary to change the layout of the horizontal joists 14 and change the lengths of many floor boards 15.

Further, since the maximum total weight of a vehicle loaded with luggage is strictly limited by law, it is necessary to reduce the weight of the vehicle itself as much as possible in order to efficiently transport as much luggage as possible. Since the cargo bed 1 occupies a relatively large amount in the total weight of the vehicle, it is desired to change the structure of the cargo bed 1 to significantly reduce the weight.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to reduce the labor and time required for assembling a truck bed as compared with the conventional case and to easily cope with changes in the bed length. The purpose is to provide a lightweight and inexpensive floor panel.

[0008]

DISCLOSURE OF THE INVENTION The present invention is a floor panel for laying two-dimensionally on a chassis frame to form a truck bed, and is provided with a box-shaped outer shell having both widthwise side surfaces open. It is characterized by being extrusion-molded so that a large number of ribs extending in the width direction are formed by vertically connecting the top plate portion and the bottom plate portion inside the outer shell.

Thus, by doing so, it becomes possible to easily manufacture a lightweight and inexpensive floor panel without requiring a special assembly process by extrusion molding, and further, this floor panel is vertically mounted on the chassis frame. Since it is possible to complete the floor structure of the truck bed simply by laying it flatly with joists and assembling it, assembly workability will be greatly improved compared to the conventional floor structure. Moreover, it is possible to easily cope with the change of the bed length by increasing or decreasing the number of panels.

Further, in the present invention, it is preferable that the thickness of the top plate portion is formed to be larger than that of the bottom plate portion. In this case, when the cargo is to be carried in the cargo bed of the truck together with the cargo. Even if a localized concentrated load is applied to the floor panel via casters, the top plate part with a large plate thickness can endure without being flexed and deformed while being assisted by the reinforcing action by the ribs. Damage caused by localized concentrated load on the panel will be avoided.

Further, a locking projection having a hook-shaped cross section is integrally formed in one of the front and rear side surfaces that are not open in the width direction, and the other of the front and rear side surfaces is engaged with another floor panel adjacent thereto. It is preferable that a locking groove capable of fitting and locking the stop projection piece is integrally formed in the width direction.

[0012] With this configuration, by engaging and locking the locking projections of the adjacent floor panels in the locking groove, the floor panels are connected to each other without using a special fastening tool. It becomes possible.

Further, in the present invention, a fastening groove portion capable of holding the bolt head in the width direction and holding the bolt head in the downward direction so as not to pull out downward is integrally formed at an appropriate position on the lower surface of the bottom plate portion. preferable.

In this way, the bolt head is inserted in the width direction and held so as not to be pulled out downward in the fastening groove on the bottom plate of the floor panel. It is possible to easily fasten it to the chassis frame side via the above, etc., and it is also possible to easily assemble accessories to the lower surface of the floor panel by using the fastening groove.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show an example of an embodiment for carrying out the present invention, and the portions denoted by the same reference numerals as those in FIGS. 7 and 8 represent the same things.

FIG. 1 shows an example of a floor panel according to the present embodiment. The floor panel 16 shown here has a box-shaped outer shell whose both side surfaces in the width direction are open, and is provided inside the outer shell. Top plate 1
6a and the bottom plate portion 16b are vertically connected to each other and are extruded from aluminum so as to form a large number of ribs 16c extending in the width direction.

Further, in the floor panel 16, the plate thickness of the top plate portion 16a forming the upper surface portion of the box-shaped outer shell is made larger than that of the bottom plate portion 16b forming the lower surface portion of the box-shaped outer shell. Further, the locking projection 16d having a hook-shaped cross section is integrally formed in the width direction on one of the front and rear side surfaces that are not opened (the side surface that faces the front of the vehicle in the assembled state described later in the illustrated example). On the other of the front and rear side surfaces, a locking groove 16e into which a locking projection 16d of another adjacent floor panel 16 can be fitted and locked is integrally formed in the width direction.

Further, a fastening groove portion which can hold a bolt head 17a (see FIG. 3) of a bolt 17 described later in the width direction at a proper position on the lower surface of the bottom plate portion 16b of the floor panel 16 so as not to pull out downward. 16f is also integrally formed in the width direction, and more specifically, this fastening groove portion 16f has a groove space that allows the bolt head 17a to pass in the width direction, and opens downward. The formed opening is narrowed down to an extent corresponding to the width of the threaded portion of the bolt 17, so that a pair of bearing surfaces on which the lower surface of the bolt head 17a rests are formed in the width direction.

When the truck bed 1 is formed by using the floor panel 16 as described above, as shown in FIG. 2, a large number of vertical joists 12 are laid on the chassis frame 10 extending in the vehicle front-rear direction. The floor structure of the cargo bed 1 will be formed by laying the floor panels 16 of 2 above in a plane.
At this time, as shown in more detail in FIGS. 3 and 4, the locking protrusion 16d of the rear floor panel 16 is inserted into the locking groove 16e of the front floor panel 16 to be fitted and locked. By doing so, the floor panels 16 are connected to each other, and the bolt heads 17a of the fastening bolts 17 are inserted into the fastening groove portions 16f on the lower surface of the floor panel 16 from the width direction and are not pulled out downward. Each floor panel 16 is assembled to the chassis frame 10 side through the vertical joist 12 by passing the bolt 17 through the bolt hole of the bracket 18 fixed to the vertical joist 12 and fastening with the nut 19. .

Further, as shown in FIGS. 2 and 5, both widthwise end portions of the floor panel 16 are fitted into the groove shape of the skirt rail 20 which forms a groove shape inwardly in the vehicle width direction, and the skirt rail 20. With respect to the upper and lower flange portions of 20, the top plate portion 16a and the bottom plate portion 16b of the floor panel 16 have rivets 21 and 2, respectively.
It is fixed at 2. Note that the skirt rail 20 is shown in FIG.
Shows the type to which the fold 7 can be attached.
A full wing type without tilt 7 is shown.

Thus, in this way, it is possible to easily produce a lightweight and inexpensive floor panel 16 by extruding aluminum without requiring a special assembling process, and furthermore, the floor panel 16 is chassis. Frame 10
Since it is possible to complete the floor structure of the truck bed 1 simply by laying it in a plane with the vertical joists 12 and assembling it, the workability of assembling is greatly improved as compared with the conventional floor structure. Moreover, it is possible to easily cope with the change of the bed length by increasing or decreasing the number of panels.

Further, the thickness of the top plate portion 16a is equal to that of the bottom plate portion 16b.
Since it is formed to be larger, the floor panel 1 can be used when carrying the cargo together with the cargo into the cargo bed 1 of the truck.
Even if a local concentrated load acts on the upper surface of the caster 6 through casters or the like, the top plate portion 16a having a large plate thickness is provided with the rib 16c.
With the aid of the reinforcing action of the floor panel 16, the floor panel 16 can endure without being flexibly deformed, so that the occurrence of damage due to a localized concentrated load on the floor panel 16 can be avoided.

Further, a locking projection 16d having a hook-shaped cross section is formed on one of the front and rear side surfaces of each floor panel 16 which are not open.
Is integrally formed in the width direction, and a locking groove 16e capable of fitting and locking the locking projection 16d of another adjacent floor panel 16 is integrally molded in the other side of the front and rear side surfaces. By fitting and locking the locking projections 16d of the adjacent floor panels 16 in the locking grooves 16e, it is possible to connect the floor panels 16 to each other without using a special fastening tool. Become.

Further, a fastening groove portion 16f capable of inserting the bolt head 17a from the width direction and holding the bolt head 17a so as not to pull out downward is integrally formed at an appropriate position on the lower surface of the bottom plate portion 16b. Insert the bolt head 17a from the width direction into the groove portion 16f for the bolt 1
Make sure that 7 is held downward so that the bolt 17
It becomes possible to easily perform the fastening between the floor panel 16 and the chassis frame 10 side through the vertical joist 12 by using.

Here, the fastening groove portion 1 on the lower surface of the floor panel 16
6f can also be used for assembling auxiliary machinery to the lower surface of the floor panel 16, and in this way, the chassis frame 10 side is forced to support the auxiliary machinery via a large bracket or the like. It is no longer necessary, and it becomes possible to easily support this type of auxiliary equipment from the floor panel 16 side.

The floor panel of the present invention is not limited to the above illustrated example, and the material of the floor panel is not limited to aluminum, and other various modifications are possible without departing from the scope of the present invention. Of course, it is possible to add.

[0028]

According to the floor panel of the present invention described above, various excellent effects as described below can be obtained.

(I) According to the invention described in claim 1 of the present invention, a lightweight and inexpensive floor panel can be easily manufactured by extrusion molding without requiring a special assembly process.
Moreover, the floor structure of the truck bed can be completed by simply laying and assembling this floor panel on the chassis frame in a plane with vertical joists and the like, thus reducing the weight of the truck bed and reducing the manufacturing cost. Can be planned
In addition, the labor and time required for the work of assembling the truck bed can be significantly reduced as compared with the conventional case, and the work of assembling the truck bed by the minimum required equipment and personnel can be realized.

(II) According to the invention described in claim 1 of the present invention, since the cargo bed is formed by the floor panel which is manufactured by extrusion molding in a lightweight and inexpensive manner, the panel can be changed even when the cargo bed length is changed. It can be easily handled by increasing or decreasing the number of sheets.

(III) According to the second aspect of the present invention, when trying to carry the cargo together with the cargo into the bed of the truck, a localized concentrated load is applied to the floor panel via casters or the like. Even if it works, it is possible to prevent damage from occurring due to the localized concentrated load on the floor panel.

(IV) According to the invention of claim 3 of the present invention, by interlocking the locking projections of the adjacent floor panels with the locking groove, the floor panels are separated from each other. Can be connected without the use of special fasteners.

(V) According to the fourth aspect of the present invention, the bolt head is inserted into the fastening groove on the lower surface of the bottom plate of the floor panel from the width direction and held so as not to be pulled out downward. By using this bolt, it is possible to easily fasten the floor panel to the chassis frame side through a vertical joist, etc., and also to assemble auxiliary equipment to the lower surface of the floor panel, using the fastening groove. It can be done easily.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of an embodiment for carrying out the present invention.

2 is a perspective view showing an example of a truck bed using the floor panel of FIG. 1. FIG.

FIG. 3 is a sectional view showing details of an assembled state of the floor panel of FIG.

FIG. 4 is a view in the direction of arrows IV-IV in FIG.

5 is a cross-sectional view showing details of a widthwise end portion of the floor panel of FIG.

6 is a cross-sectional view corresponding to the same portion as FIG. 5 in the case of the full wing type.

FIG. 7 is a perspective view showing an example of a wing body type truck bed.

FIG. 8 is a cross-sectional view of a conventional floor structure of a cargo bed.

[Explanation of symbols]

1 platform 10 chassis frame 16 floor panels 16a Top plate part 16b Bottom plate part 16c rib 16d locking protrusion 16e Locking groove 16f Fastening groove 17 Volts 17a bolt head 19 nuts

Continued front page    (72) Inventor Toru Iizuka             3-1, Hinodai, Hino City, Tokyo 1 Hino             Inside the automobile corporation (72) Inventor Hiroshi Tanimoto             1-3-18 Wakihama-cho, Chuo-ku, Kobe-shi, Hyogo               Inside Kobe Steel Works

Claims (4)

[Claims] 1. A floor panel for planarly laying on a chassis frame to form a truck bed, the floor panel having a box-shaped outer shell with both widthwise side surfaces open, and inside the outer shell. A floor panel characterized by being formed by extrusion so that a number of ribs extending in the width direction are formed by vertically connecting a top plate portion and a bottom plate portion. 2. The floor panel according to claim 1, wherein the thickness of the top plate is larger than that of the bottom plate. 3. A locking protrusion having a hook-shaped cross section is integrally formed in one of the front and rear side surfaces which are not opened in the width direction, and another floor panel adjacent to the other is locked to the other of the front and rear side surfaces. The floor panel according to claim 1 or 2, wherein a locking groove capable of fitting and locking the projecting piece is integrally formed in the width direction. 4. A fastening groove portion, which is capable of holding the bolt head in the width direction and holding the bolt head so as not to be pulled out downward, is integrally formed in the width direction at an appropriate position on the lower surface of the bottom plate portion. The floor panel according to 1, 2 or 3.