JPH0669068U - Freight vehicle carrier - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a freight vehicle carrier that allows easy construction of vertical joists and horizontal joists and provides a structure with high strength. [Structure] The fastener 10 integrally has a first fixing piece 10a facing one side surface 1a of the vertical joist 1 and a second fixing piece 10b facing one side surface 2a of the lateral joist 2 and is substantially L-shaped in cross section. The fixing pieces 1a and 2a are formed in a shape and are brought into contact with the corresponding vertical joist 1 and lateral joist 2 respectively, and the fastener 10 is provided at a portion where the longitudinal joist 1 and the lateral joist 2 intersect.
And the fixing piece 10a and the vertical joist 1 which are in contact with each other, and between the fixing piece 10b and the lateral joist 2 are fixed by bolts 11 respectively inserted from the horizontal direction, and the vertical joist 1 and the lateral joist 2 are fixed. Integrated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cargo bed for a freight vehicle, and in particular, a horizontal joist is placed on a vertical joist attached to a chassis so as to intersect the vertical joist at a substantially right angle, and the vertical joist and the horizontal joist described above are fastened by fasteners. The present invention relates to a freight vehicle carrier formed by integrally fastening and.

[0002]

[Prior art]

 5 and 6 show a structure of a main part of a conventional freight vehicle carrier, FIG. 5 is a perspective view thereof, and FIG. 6 is an enlarged schematic sectional view taken along the line CC of FIG. In FIGS. 5 and 6, in this cargo bed structure, a wooden vertical joist 51 is placed on a chassis (not shown) extending in the front-rear direction of the vehicle body, and the vertical joist 51 and the chassis include U bolts (not shown). Fastened together with fasteners. A wooden horizontal joist 52 is placed on the vertical joist 51 at a right angle to the vertical joist 51, and a plurality of floor boards 53 are laid on the horizontal joist 52. It covers the entire surface of the.

When fixing the horizontal joist 52 to the vertical joist 51, the insides of the vertical joist 51 and the lateral joist 52 are placed in an upper and lower direction at the portion where the lateral joists 52 are placed on the longitudinal joist 51 so as to intersect each other at a right angle. The structure is such that the bolt 53 is attached by penetrating it, and the nut 54 is fastened and fixed to the tip screw portion of the bolt 53 projecting to the opposite side.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional freight vehicle loading platform, when fixing the vertical joists 51 and the horizontal joists 52, the vertical joists 51 and the lateral joists are placed on the longitudinal joists 51 with the lateral joists 52 crossing each other at right angles. Bolts 53 are attached by penetrating up and down through the thick part 52, and nuts 54 are fastened and fixed to the threaded ends of the bolts 53 protruding on the opposite side. Therefore, the head of the bolt 53 projects right above the portion where the bolt 53 and the nut 54 are fastened together, that is, the portion where the vertical joist 51 and the lateral joist 52 intersect, or the tip screw portion of the bolt 53 lies directly below. If it sticks out, it will cause trouble during assembly. Therefore, in consideration of these, in the conventional structure, as shown in FIG. 6, a counterbore portion 55 for embedding the head 53a of the bolt 53 is provided on the upper surface of the horizontal joist 52, and a nut is provided on the lower surface of the vertical joist 51. A cutout portion 56 for tightening is provided.

Therefore, there are problems as described in (1) to (3) below. (1) Since it is necessary to perform processing for providing the spot facing portion 55 and the spot facing portion 56, the manufacturing cost becomes high. (2) When the spot facing portion 55 and the spot facing portion 56 are provided, the strength of the wooden joists 51 and 52 is reduced. In particular, the portion where the bolts 53 are fastened, that is, the portion where the vertical joists 51 and the lateral joists 52 intersect, is where the vertical joists 51 concentrate and receive the load from the lateral joists 52. Since the cutout portion 56 is formed below the vertical joist 51, the strength of the vertical joist 51 is further reduced. Therefore, it is necessary to use thick joists 51 and 52 as a whole to compensate for this, which increases the material cost and the weight of the entire loading platform. (3) At the intersection of the vertical joist 51 and the horizontal joist 52, a long bolt 53 is attached by vertically penetrating the vertical joist 51 and the lateral joist 52, so that a general-purpose bolt cannot be used and a dedicated bolt cannot be used. The cost increases because bolts are used. Further, since the bolt 53 is long, the assembling workability is poor, the tightening force is reduced, and loosening easily occurs over time.

The present invention has been made in view of the above problems, and an object thereof is to provide a freight vehicle carrier that allows easy construction of the vertical joist and the lateral joist and that has a structure with high strength. Especially.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention mounts a horizontal joist on the vertical joist attached to the chassis, intersecting the vertical joist at a substantially right angle, and integrally connecting the vertical joist and the horizontal joist with a fastener. A cross section in which the fastener is integrally formed with a first fixing piece facing one side surface of the vertical joist and a second fixing piece facing one side surface of the horizontal joist in a vehicle carrier formed by The fasteners are formed in a substantially L shape, and the fixing pieces are respectively brought into contact with the corresponding vertical joists and lateral joists, and the fasteners are arranged at the intersections of the vertical joists and the horizontal joists, A configuration in which the fixing piece and the vertical joist, and the fixing piece and the horizontal joist, which are in contact with each other, are fixed by bolts that are inserted from the horizontal direction, and the vertical joist and the horizontal joist are integrally fastened. It is what

[0008]

[Action]

 According to this configuration, avoiding the upper and lower parts where the horizontal joist and the vertical joist intersect where the load from the lateral joist is concentrated, the fasteners are attached to the corresponding lateral joist and vertical joist on each side. By abutting and fixing the side surface of each abutting joist and the fastener with the bolts respectively inserted from the horizontal direction, the joists can be fixed via the fastener. Therefore, it is not necessary to attach a long bolt by vertically penetrating the vertical joist and the horizontal joist at the intersection of the vertical joist and the horizontal joist, which is required in the conventional structure. Moreover, in this configuration, since each joist and the fastener are in contact with each other, a general-purpose bolt can be horizontally inserted in the width direction of each joist and fixed without using a particularly long bolt. It is possible to tighten bolts easily, and it can be securely fixed. In addition, since the bolts can be inserted horizontally in the width direction of each joist and fixed, the bolt does not protrude in either direction of the horizontal joist and the upper and lower surfaces of the vertical joist. Therefore, it is not necessary to machine the parts such as the countersink and the cut-out, which were required in the conventional structure. This makes it possible to obtain the same strength even if the thickness of the vertical joist and the horizontal joist is smaller than in the conventional case.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a main structure of a cargo carrier according to an embodiment of the present invention. FIG. 1 is a perspective view thereof, and FIGS. 2 and 3 are fixing structures of the main parts. It is a figure.

In FIGS. 1 to 3, in this luggage carrier structure, a wooden vertical joist 1 is placed on a chassis (not shown) extending in the front-rear direction of the vehicle body with a spacer (not shown) made of plastic interposed therebetween. Then, the chassis, the spacer, and the vertical joist 1 are fastened together by a U bolt or the like (not shown).

Further, a horizontal joist 2 is placed on the vertical joist 1 so as to intersect the vertical joist 1 at a right angle, and a plurality of floor boards 3 are laid on the lateral joist 2 and the floor board 3 serves as a loading platform. The entire structure is covered.

When the horizontal joist 2 is fixed to the vertical joist 1, the fastening bracket 10 is arranged on the vertical joist 1 where the transverse joist 2 is crossed at a right angle, and the bolt 11 and the nut. 12 is used to fix the space between the vertical joist 1 and the lateral joist 2.

More specifically, the fastening bracket 10 is made of a steel plate, and is integrally formed with a first fixing piece 10a and a second fixing piece 10b that are bent at right angles to each other, and is formed in a substantially L shape. Has been. Further, the first fixing piece 10a is formed with a through hole 13 into which the bolt 11 is inserted at a portion corresponding to one side surface 1a of the vertical joist 1, and the second fixing piece 10b is formed with one side surface of the lateral joist 2. A through hole 14 into which the bolt 11 is inserted is formed at a portion corresponding to 4a.

On the other hand, on the vertical joist 1 side, a mounting hole 15 corresponding to the through hole 13 is formed so as to penetrate in the left-right direction, and on the lateral joist 2, a mounting hole corresponding to the through hole 14 is formed. 16 is formed so as to penetrate in the front and rear direction.

Here, looking at the positions of the mounting holes 15 and 16, in the structure in which the horizontal joist 2 is placed on the vertical joist 1, the portion where the load from the lateral joist 2 is concentrated is shown in FIG. As shown by netting with hatching (part A), the horizontal joist 2 intersects the vertical joist 1, but the mounting holes 15 and 16 in the structure of this embodiment have the longitudinal joist 1 Since the fastening brackets 10 are arranged so as to abut on the side surface 1a and the side surface 2a of the horizontal joist 2, the position lateral joist 2 is provided in a portion outside the upper and lower regions of the portion where the vertical joist 1 intersects. ing. The holes drawn with alternate long and short dash lines in FIG. 4 indicate the positions of the holes through which the bolts pass in the case of the conventional structure.

When the horizontal joist 2 is fixed to the vertical joist 1, the lateral joist 2 is placed at a predetermined position on the longitudinal joist 1 while intersecting the lateral joist 2 at a substantially right angle. Then, the fixing piece 10a is brought into contact with the one side surface 1a of the vertical joist 1 with the through hole 13 and the mounting hole 15 corresponding to each other, and the through hole 14 and the mounting hole 16 are corresponded with each other to the first side surface 2a of the lateral joist 2 with The two fixing pieces 10b are brought into contact with each other, and the fastening bracket 10 is arranged at the portion where the vertical joist 1 and the lateral joist 2 intersect. Further, in this state, the bolt 11 is inserted from the fastening bracket 10 side through the through hole 13 and the through hole 14 into the mounting hole 15 and the mounting hole 16, and the tip screw portion of the bolt 11 passing through the vertical joist 1 and the lateral joist 2. Tighten the nuts 12, respectively. Then, the fastening bracket 10 and the vertical joist 1 are fixed to each other, and the fastening bracket 10 and the lateral joist 2 are fixed to each other, and the lateral joist 2 is fixed to the vertical joist 1 via the fastening bracket 10.

Therefore, in the structure of the present embodiment, the respective fixing pieces 10a and 10b of the fastener 10 are brought into contact with the respective side surfaces 1a and 2a of the corresponding vertical joist 1 and lateral joist 2 respectively, and the respective contacted pieces Since the side faces 1a and 2a of the joists 1 and 2 and the fastener 10 are fixed by the bolts 11 which are respectively inserted from the horizontal direction and the nuts 12 which are fastened to the bolts 11, the vertical joists and the lateral joists that are required in the conventional structure. It becomes unnecessary to attach the long bolt by vertically penetrating the vertical joist and the horizontal joist at the intersection of and.

Moreover, in this configuration, since the joists 1 and 2 and the fixing pieces 10a and 10b of the fastener 10 are in contact with each other, a general-purpose bolt can be used without using a special long bolt. The joists can be fixed by inserting them horizontally in the width direction of the joists 1 and 2, and the bolts 11 and the nuts 12 can be easily tightened and can be securely fixed.

Since the bolts 11 are horizontally inserted and fixed in the width direction of the joists 1 and 2, the bolts 11 can be projected in any direction of the upper and lower surfaces of the vertical joist 1 and the lateral joist 2. Since there is no such structure, it is not necessary to machine the parts such as the cut-out portion and the cut-out portion, which are required in the conventional structure. This makes it possible to obtain the same strength even if the thickness of the vertical joist 1 and the lateral joist 2 is made smaller than the conventional one, and it is possible to reduce the weight of the entire loading platform and to reduce the cost of processing and materials. It can be reduced.

[0020]

[Effect of device]

 As explained above, according to the freight vehicle carrier according to the present invention, the fastening piece of the fastener is accommodated while avoiding the upper and lower portions where the horizontal joist and the vertical joist intersect where the load from the lateral joist is concentrated. Abut each side of the horizontal joist and vertical joist, and fix the side of each joist and the fastening tool with the bolts inserted from the horizontal direction. Since it can be fixed, it is not necessary to attach a long bolt vertically through the vertical joist and the horizontal joist at the intersection of the vertical joist and the horizontal joist, which was required in the conventional structure. . Further, in the structure of the present invention, since the joists and the fasteners are in contact with each other, general-purpose bolts can be used, and further, the bolts can be inserted and fixed in the horizontal direction. As a result, the cost can be reduced and the workability can be improved, and at the same time, the bolts can be easily tightened and can be securely fixed. Also, since the bolts are inserted and fixed in the horizontal direction, the bolts do not protrude in either direction of the horizontal joists and the upper and lower surfaces of the vertical joists, and the pruning part and the cut-out part, etc., which are required in the conventional structure. Processing is unnecessary. As a result, sufficient strength can be obtained even if the thicknesses of the vertical joist and the horizontal joist are smaller than those of the conventional one. Therefore, the weight of the entire loading platform can be reduced, and the processing and material costs can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing a main part structure of a cargo bed for a freight vehicle according to an embodiment of the present invention.

[Fig. 2] Fig. 2 is a view for explaining the fixing structure of the fastener and the vertical joist in the same cargo bed of the present embodiment.

[Fig. 3] Fig. 3 is a view for explaining a fixing structure of a fastener and a lateral joist in the same loading platform of the present embodiment.

FIG. 4 is a diagram for explaining a load applied to a lateral joist.

FIG. 5 is a perspective view showing a main structure of a conventional freight vehicle carrier.

FIG. 6 is an explanatory view of a structure in which a horizontal joist spacer is attached to a vertical joist in the conventional loading platform.

[Explanation of symbols]

 1 Vertical joist 1a Side of vertical joist 2 Side lateral joist 2a Side of lateral joist 3 Floor plate 10 Fastener 10a First fixing piece 10b Second fixing piece 11 Bolt 12 Nut

Claims (1)

[Scope of utility model registration request] 1. A horizontal joist is placed on a vertical joist mounted on a chassis so as to intersect the vertical joist at a substantially right angle, and the vertical joist and the horizontal joist are integrally fastened by a fastener. In a vehicle bed, the fastener has a substantially L-shaped cross section integrally including a first fixing piece facing one side surface of the vertical joist and a second fixing piece facing one side surface of the lateral joist. Along with forming, each of the fixing pieces are respectively brought into contact with the corresponding vertical joist and the horizontal joist, and the fastener is arranged at a portion where the vertical joist and the lateral joist intersect with each other, and the abutment is made. A freight vehicle characterized in that a fixing piece and the vertical joist, and a space between the fixing piece and the lateral joist are fixed by bolts respectively inserted from the horizontal direction, and the vertical joist and the horizontal joist are integrally fastened together. Loading platform.