JP2001030964A - Truck deck structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the air resistance without reducing the storage volume of a truck deck. SOLUTION: Both sides 11 of a truck deck mounted on a rear part of a truck body comprise double walls of an inner wall 11a and an outer wall 11c. The outer wall 11c outside the rear part is provided with a specified interval from the inner wall 11b, and a rear part of the outer wall 11c is inclined or curbed so as to be closer to the inner wall 11b toward the rear end. A hinged double door 13 is pivotably supported by both side walls 11 via a hinge part 14, and the rear part of the outer wall 11c of both side walls 11 except the hinge part 14 is inclined or curved. A roof is placed between upper ends of both side walls 11, and an upper surface of a rear part of the roof is inclined or curved. An upper surface of a side part of the hinge double door is inclined or curved so as to be continuous to an inclined or curved surface of the rear parts of both side walls. A locking mechanism of the hinged double door 13 is provided inside the outer surface of the hinged double door 13. A hinge part 14 is provided on tips of a plurality of stays erected on a column 11a of the side walls 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck bed structure mounted on a rear portion of a truck body.

[0002]

2. Description of the Related Art Conventionally, as a carrier for a truck mounted on the rear part of a vehicle body of a truck, between a side wall, a double-sided door pivotally supported at or near the rear end of the side wall, and between upper ends of the side walls. There is known a van-type carrier having a roof erected on a vehicle. In this carrier, front walls protruding above the cab of the truck are provided at the front ends of both side walls. For this reason, a rectifying member for reducing the air resistance during traveling of the truck is provided on the front wall to reduce the air resistance at the front of the loading platform. On the other hand, the air that has flowed to the rear of the load along the outer wall of the load forms a vortex behind the double door when flowing from the rear end of the outer wall to the rear of the load. In order to solve this problem, a rear structure of a van-type truck in which a rectifying member is provided also at the rear of the loading platform has been proposed (Japanese Utility Model Laid-Open No. 4-5187). In the rear structure of this van type truck, a guide panel, which is a rectifying member, is attached to a rear wall, and the guide panel gently guides the air flowing rearward along the side wall to the rear of the cargo bed and guides the air behind the door. The generated vortex is made as small as possible to reduce the air resistance due to the vortex.

[0003]

However, the rear structure of the van-type truck described above has a drawback that the storage capacity of the carrier is reduced because the guide panel is attached to the rear wall. In other words, the total length of the current truck is limited by law, and providing a guide panel on the rear wall within this limit means reducing the overall length of the carrier itself, which reduces the storage capacity of the carrier. There is. Particularly, in the conventional double door, a so-called lock bar is provided outside the door, and the total length of the truck is defined by the distance from the front end of the truck to the lock bar. For this reason, when the guide panel projects rearward of the loading platform beyond the lock bar, it is necessary to shift the mounting position of the double door itself forward by an amount by which the guide panel projects, and mount the door.
There is also a problem that the total length of both side walls and the roof of the carrier must be changed. SUMMARY OF THE INVENTION An object of the present invention is to provide a truck bed structure capable of reducing air resistance during traveling of a truck without reducing the accommodation capacity of the truck.

[0004]

The invention according to claim 1 is
As shown in FIG. 1, this is an improvement of a truck bed structure which is mounted on a rear portion of a vehicle body of a truck and in which both side walls 11 have a double wall of an inner wall 11 b and an outer wall 11 c. The characteristic configuration is
The outer wall 11c other than the rear portion is provided at a predetermined distance from the inner wall 11b, and the rear portion of the outer wall 11c is formed to be inclined or curved so as to approach the inner wall 11b toward the rear end. In the invention according to the first aspect, the rear portion of the outer wall 11c is inclined or curved so as to approach the inner wall 11b toward the rear end. A surface is formed. This inclined surface or curved surface gently guides the air flowing backward along both side walls 11 as the truck travels to the rear of the double door 13, and the door 13
The vortex generated behind is reduced to reduce air resistance.

The invention according to a second aspect is the invention according to the first aspect, wherein the double door 1 is provided at or near the rear ends of the side walls 11.
3 are pivotally supported via a plurality of hinge portions 14, and the hinge portions 1
This is a truck bed structure in which the rear portion of the outer wall 11c of the side walls 11 except for the outer wall 4 is inclined or curved so as to approach the inner wall 11b toward the rear end. In the invention according to the second aspect, the outer walls 11 of the side walls 11 excluding the hinge portion 14 are formed.
Since c is brought closer to the inner wall 11b, an inclined surface or a curved surface is formed on both side walls 11 without lowering the strength for pivotally supporting the double door 13.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein a roof 12 is erected between the upper ends of both side walls 11, and a rear upper surface of the roof 12 is provided, as shown in FIG. Is a truck bed structure that is formed to be inclined or curved so that the height decreases toward the rear end. According to the third aspect of the present invention, the slope or curve formed on the rear upper surface of the roof 12 guides the air flowing backward along the roof 12 gently to the rear of the door 13 to reduce the air resistance. The invention according to claim 4 is the invention according to claim 2 or 3, wherein, as shown in FIG. 1, the side outer surface of the double-sided door 13 is inclined or bent so as to be continuous with the inclined surface or curved surface at the rear of both side walls. It is a bed structure of a truck formed by bending. According to the fourth aspect of the invention, the curved surface formed on the side outer surface of the door 13 guides the air flowing from the rear ends of the side walls 11 gently to the rear of the door 13.
The vortex generated behind is further reduced to further reduce the air resistance.

The invention according to claim 5 is the invention according to claim 4, wherein, as shown in FIG. 5, a truck bed provided with a lock mechanism 16 of the double door 13 inside the outer surface of the double door 13. Structure. In the invention according to claim 5, the total length of the truck is defined by the distance from the front end of the truck to the outer surface of the double door 13. Therefore, the outer surface of the door can be deflected backward as far as it does not exceed the specified value, and the lock bar changes the total length of the bed compared to the conventional bed using a double door provided outside the door. Without increasing the accommodation volume by that amount of deviation.

The invention according to claim 6 is the invention according to claims 2 to 5
In the invention according to any of the above, as shown in FIG. 2, a support 11a is erected between an inner wall 11b and an outer wall 11c at a predetermined distance from a rear end of the side wall 11, and a length corresponding to a predetermined distance is provided. A plurality of stays 11d projecting rearward from the pillars 11a and having a hinge portion 14 at the tip of the stay 11d have a truck bed structure. In the invention according to claim 6, since the double doors 13 are pivotally supported at the tips of the plurality of stays 11d projecting rearward of the support pillars 11a, the rear portions of the outer walls 11c of the side walls 11 can be easily formed with a desired curved surface or It can be formed on an inclined surface.

[0009]

Next, an embodiment of the present invention will be described. As shown in FIG. 5, a van-type carrier 10 mounted on the rear of the vehicle body of a truck includes a side wall 11, a roof 12 erected between upper ends of the side walls 11, and a roof 12 and both side walls 11. And a double door 13 for opening and closing the opening formed by each rear end. As shown in FIG. 1 and FIG. 2, both side walls 11 in this embodiment are formed such that an inner wall 11b and an outer wall 11 are sandwiched by a frame.
c has a structure consisting of a double wall stretched. As shown in FIGS. 2 and 3, the frame is a column 1 made of square steel.
1a and a plurality of stays 11d.
1 and the inner wall 11b and the outer wall 1 at a predetermined distance from the rear end.
1c. The plurality of stays 11d are columns 11
It is a square steel material having the same thickness as a and formed to have a length corresponding to a predetermined distance. This plurality of stays 11
d is projected from the back of the support 11a by welding, and at the tip thereof, a side wall side hinge 14a for pivotally supporting the double door 13 is provided.

As shown in FIGS. 1 and 2, the outer wall 11c, which is located forward of the support 11a of the side walls 11, that is, except for the rear portion, has the thickness of the support 11a and the stay 11d with respect to the inner wall 11b.
That is, they are provided at predetermined intervals. The inner wall 13b and the outer wall 1 at a predetermined distance from the side end of the double door 13 toward the center of the vehicle body.
A support 13a is provided between the support 3c and the support 3c. This pillar 13
Similarly to the side wall, a stay 13d made of a square steel material having the same thickness as the support column 13a is protruded by welding, and a door-side hinge 1 for pivotally supporting the double door 13 is also provided at the tip of the stay 13d.
4b is provided. The door side hinge 14b is the side wall side hinge 1.
The hinge portion 14 is connected to the door 4a by a hinge pin 14c, and the side wall side hinge 14a, the door side hinge 14b, and the hinge pin 14c. As shown in FIG. 1, an outer wall 1 behind a support 11 a on which a stay 11 d is not provided is provided.
The rear portion of the stay 1c is formed to be inclined so as to approach the inner wall 11b toward the rear end, and as shown in FIG.
The rear portion of the outer wall 11c behind the column 11a provided with 1d is formed along the stay 11d. By inclining the rear portion of the outer wall 11c where the stay 11d is not provided, the rear portions of the outer walls 11c of the side walls 11 excluding the side wall side hinges 14a become closer to the rear end.
1b.

As shown in FIG. 4, the roof 12 in this embodiment is composed of a double wall in which an inner wall 12b and an outer wall 12c are stretched so as to sandwich the frame on a frame 12a. It is provided at a predetermined interval with respect to the inner wall 12b. The rear part of the outer wall 12c behind the frame 12a is formed to be curved so as to approach the inner wall 12b toward the rear end, and thus the rear part of the roof 12 is curved so as to decrease in height toward the rear end. Formed. Returning to FIG. 5, the double door 13 is pivotally supported via a plurality of hinges 14 provided on the rear ends of the side walls 11 and the side ends of the door 13, and the double door 13 is positioned inside the outer surface.
Lock mechanism 16 is provided. The lock mechanism 16 in this embodiment includes a pair of operation handles 16 a buried from the outer surface of the
and a pair of lock bars 16b provided inside the door so that the shaft can be rotated by the operation of a. As shown in FIGS. 6 and 7, locking claws 16 c are provided at the upper end and the lower end of the lock bar 16 b, respectively, protruding toward the joint of the double door. Stop claws 16
The locked arm 16d engaging with the locking c is provided so as to enclose the locking claw 16c. When the door 13 is closed, the locking claws 16c provided at the upper and lower ends of the lock bar 16b engage with the locked arm 16d when the door 13 is closed.
The opening of the door 13 is allowed by the locking claw 16c of the lock bar 16b pushing the door 13 outward by the operation of the operation handle 16a and disengaging from the locked arm 16d by operating the operation handle 16a (FIG. 6). (FIG. 7).

As shown in FIGS. 1 and 2, the outer side surface of the door 13 is curved so as to be continuous with an inclined surface formed at the rear of the side walls 11, and the curved surface 13a has the above-mentioned curved surface 13a. Door hinge 14b is provided. The double door 13 is pivotally supported at the rear ends of the side walls 11 via a plurality of door-side flanges 14b provided on the curved surface 13a. As shown in FIG. 1, FIG. 2 and FIG.
The weather strip 17 is configured to seal the gap between the side walls 11 and the end of the roof 12 in a state where the door 13 is closed so as to prevent rainwater from entering the inside of the loading platform 10. You.

[0013] In the truck bed structure thus configured, an inclined surface or a curved surface facing inward toward the rear of the bed is formed at the rear of the bed 10, so that when the truck runs, both side walls of the bed 10 are formed. The air flowing backward along the roof 11 and the roof 12 is gently guided at the rear of the rear of the door 13 as shown by the dashed-dotted arrow A in FIG. Air resistance can be reduced. In this case, the inclined surfaces formed on both side walls 11 are columns 1 on which stays 11d are not provided.
Since the rear portion of the outer wall 11c behind 1a is formed closer to the inner wall 11b toward the rear end, the storage capacity of the carrier 10 is not reduced. Further, even on the inclined surface of the roof 12, the rear part of the outer wall 12c is formed to be curved so as to approach the inner wall 12b toward the rear end, so that the storage capacity of the load carrier 10 is not similarly reduced.

Further, since the double door 13 is provided with the lock mechanism 16 provided inside the outer surface, the total length of the truck is defined by the distance from the front end of the truck to the outer surface of the double door 13. For this reason, the accommodation volume is increased by the amount of deviation as compared with a conventional bed using a double door provided with a lock bar outside the door. Also, both side walls 11 are columns 11a.
And a plurality of stays 11d, the plurality of stays 11d are protruded behind the column 11a, and the double-sided door 13 is pivotally supported at the tip of the plurality of stays 11d. Alternatively, it can be formed on an inclined surface. Further, since the side outer surface of the door 13 is formed to be curved so as to be continuous with the inclined surface formed at the rear of the side walls 11, the air flowing from the rear ends of the side walls 11 to the rear of the door 13 is
As shown by arrow A in FIG. 1, the door 1 is guided rearward along the curved surface 13 a of the double door 13 from the end, so that the door 1
The vortex generated behind 3 can be further reduced to further reduce the air resistance.

In the above embodiment, the inclined surfaces are formed on both side walls, and the curved surfaces are formed on the roof and the double door. However, the curved surfaces may be formed on both side walls, or the roof and the double door may be formed. An inclined surface may be formed. Also, hinge 14a
14b and the structure of the lock mechanism 16 are not limited to the above-described embodiment.

[0016]

As described above, according to the present invention, since the rear portions of the outer walls of both side walls of the carrier are inclined or curved so as to approach the inner wall toward the rear end, the storage capacity of the carrier is reduced. It is possible to form an inclined surface or a curved surface facing inward toward the rear at the rear portion of the side walls without the need. The inclined surface or the curved surface guides the air flowing rearward along the side walls of the truck gently to the rear of the double door when the truck runs, so that the air resistance during the running of the truck can be reduced. In this case, since the outer walls of both side walls except the hinge portion are brought closer to the inner wall, the strength for pivotally supporting the double door is not reduced. In addition, if the upper surface of the rear part of the roof is formed so as to be inclined or curved so that the height becomes lower toward the rear end, the air flowing backward along the roof is gently guided to the rear of the double door, so that the air is further increased. Resistance can be reduced, and if the side outer surface of the door is inclined or curved so as to be continuous with the inclined surface or curved surface of the rear portion of both side walls, air flowing from the rear ends of both side walls can be curved. Gently guides the rear side of the door, the air resistance can be further reduced. On the other hand, the overall length of the truck is defined by the distance from the front end of the truck to the outer surface of the double door, so if a double door with a lock mechanism inside the outer surface is used, the outer surface of the double door is set to the specified value. Of the lock bar can increase the accommodation volume by the amount of the deviation as compared with a conventional bed using a double door provided on the outside of the door.

[Brief description of the drawings]

FIG. 1 is a BB diagram of FIG.
Line sectional view.

FIG. 2 is a sectional view taken along the line CC of FIG. 5, showing the structure of the side wall.

FIG. 3 is a sectional view taken along line DD of FIG. 2 showing the structure of the side wall;

FIG. 4 is a sectional view taken along line EE of FIG. 5 showing the structure of the roof.

FIG. 5 is a rear perspective view of the carrier.

FIG. 6 is a sectional view taken along the line FF of FIG. 5 showing the lock mechanism of the double door in a closed state.

FIG. 7 is a cross-sectional view taken along the line FF of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Carrier 11 Side wall 11a Prop 11b Inner wall 11c Outer wall 11d Stay 12 Roof 13 Kannon door 14 Hinge part 14a Side wall side hinge 14b Door side hinge 14c Hinge pin 16 Lock mechanism

Claims (6)

[Claims] 1. A vehicle which is mounted on a rear portion of a vehicle body of a truck and has both side walls.
(11) In a truck bed structure comprising a double wall of an inner wall (11b) and an outer wall (11c), the outer wall (11c) other than the rear portion is provided at a predetermined distance from the inner wall (11b). The inner wall (11c) as the rear of the outer wall (11c) faces the rear end.
A truck bed structure characterized by being formed so as to be inclined or curved so as to approach b). 2. A double door at the rear end or near the rear end of both side walls (11).
(13) is pivotally supported via a plurality of hinge portions (14), and the rear portion of the outer wall (11c) of the side walls (11) excluding the hinge portion (14) is on the inner wall (11b) as the rear end faces the rear end. The truck bed structure according to claim 1, wherein the truck bed is formed to be inclined or curved so as to approach. 3. A roof (12) is installed between the upper ends of the side walls (11), and the roof upper surface is inclined or curved so that the height of the rear upper surface decreases toward the rear end. The truck bed structure according to claim 1 or 2, which is formed. 4. The truck bed structure according to claim 2, wherein the side outer surface of the double door (13) is formed so as to be inclined or curved so as to be continuous with the inclined surface or the curved surface at the rear portion of both side walls. 5. The double door (13) inside the outer surface of the double door (13).
5. The truck bed structure according to claim 4, wherein the lock mechanism (16) of (13) is provided. 6. A support (11a) is erected between an inner wall (11b) and an outer wall (11c) at a predetermined distance from a rear end of the side wall (11),
A plurality of stays (1) having a length corresponding to the predetermined distance
1d) is projected rearward from the column (11a), and the stay (1
The truck bed structure according to any one of claims 2 to 5, wherein a hinge portion (14) is provided at a tip of 1d).