JP2017105358A - Loading platform structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loading platform which maximizes an opening area when a wing door opens while reducing air resistance when a truck travels.SOLUTION: In a loading platform structure of a truck having a wing body structure in which a wing door 4 is provided so as to open or close, the wing door 4 has an inclined plate 44, which inclines inward toward a rear side of the loading platform 2, at a rear end part in a fore and aft direction of the loading platform 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a truck bed structure having a wing body structure that can lift a wing door up and down to load and unload a load.

  Among truck bed structures, a type of box-type bed structure called a van body is a wing body structure in which the side surface portion is opened wide by flipping up the side of the box-type bed. In the wing body structure, since the opening can be made wide, it is possible to easily load and unload the load. More specifically, the wing body structure is, for example, a structure in which the side of a box-type cargo bed is divided into two vertically, the upper half is opened integrally with the roof, and the lower half is opened downward as in the case of the flat body. Many have

  In a truck having such a wing body type loading platform structure, for example, Patent Document 1 discloses a technique of providing a rectifying plate for reducing air resistance when the truck travels.

Japanese Patent No. 5442981

  The current plate disclosed in Patent Document 1 is fixed to a frame portion at the rear of the box-type carrier structure, and the left and right side surfaces of the box and the outer wall of the upper portion are inclined inward. And in patent document 1, in order to guide the air which flows into the back of a loading platform, the frame part of the rear part of a loading platform structure has an inclined part which has a length more than a certain amount. However, the total length of the truck is restricted by laws and regulations, etc., and in order to keep the total length of the truck within the range of this restriction, the area where the wing part on the side of the loading platform opens (hereinafter referred to as the opening) (Referred to as area) had to be reduced.

  The present invention has been made in view of such circumstances, and provides a cargo bed structure capable of reducing the air resistance during truck running and widening the opening area at the time of opening the wing door as much as possible. is there.

  The loading platform structure of the present invention is a loading platform structure of a truck having a wing body structure in which a wing door is provided so as to be openable and closable. It has an inclined plate inclined inward.

  According to the present disclosure, it is possible to reduce the air resistance during truck traveling and to make the opening area when the wing door is open as wide as possible.

The figure for demonstrating the loading platform structure of the state which the wing door opened in the truck which has a wing body structure The figure which looked at the track of the state where the wing door and the wing were closed in the 1st embodiment from the side A side view of the loading platform including the inclined plate when the wing door and the wing are closed A top view of the loading platform, including the inclined plate, with the wing door and tilt closed The rear view of the loading platform including the inclined plate with the wing door and the wing closed. A side view of a truck with an inclined plate with the wing door and the wing open. Truck side view The figure which looked at the section in line AA shown in Drawing 5A from the top The figure for demonstrating the loading platform structure which concerns on 2nd Embodiment The figure which shows the track | truck of the state which the wing door and the wing opened in 2nd Embodiment. The figure for demonstrating the loading platform structure concerning 3rd Embodiment The figure which shows the track | truck of the state which the wing door and the wing opened in 3rd Embodiment. The figure for demonstrating the loading platform structure which concerns on 4th Embodiment

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a diagram for explaining a cargo bed structure in a state where a wing door is opened in a truck 100 having a wing body structure. In FIG. 1, the track 100 is viewed from the diagonally left side. As shown in FIG. 1, the truck 100 includes a cab 1 and a loading platform 2.

  The cab 1 is a part including a driver's seat of the truck 100 and a driver's living space. The loading platform 2 is a portion of a platform on which a load is placed, and has a front wall 3, a wing door 4, a tilt 5, and a rear door 6 as shown in FIG. Hereinafter, a detailed structure of the loading platform 2 of the truck 100 will be described.

  The front wall 3 is a wall installed along the rear surface of the cab 1. In order to reduce the air resistance when the truck 100 travels, it is desirable to make the gap between the cab 1 and the front wall 3 as small as possible.

  The wing door 4 is a door that opens with a beam portion 41 installed approximately at the position of the center line of the upper surface (ceiling) of the loading platform 2 as a rotation axis. As shown in FIG. 1, the center line of the upper surface of the loading platform 2 is a line connecting a central portion on the upper side of the front wall 3 and a central portion on the upper side of a door frame 61 of the rear door 6 described later. The wing door 4 is opened and closed by using, for example, hydraulic pressure or air pressure with the beam portion 41 as a rotation axis. The opening / closing mechanism of the wing door 4 is not shown in FIG.

  1 shows a state in which only the wing door 4 on the left side of the truck 100 is opened, a similar wing door is also provided on the right side of the truck 100 in FIG. May be opened and closed.

  As shown in FIG. 1, the wing door 4 includes a first plate-like member 42 that is a part of the side wall of the loading platform 2 when the wing door 4 is closed, and an upper surface of the loading platform 2 when the wing door 4 is closed ( And a second plate-like member 43 that is half of the ceiling. The first plate member 42 and the second plate member 43 are fixed to each other at substantially right angles along the front-rear direction of the loading platform 2.

  Further, the wing door 4 has an inclined plate 44 at its rear end. The inclined plate 44 is provided at a rear end portion of both the first plate-like member 42 and the second plate-like member 43 with a predetermined inclination angle, and along the side surface and the upper surface of the loading platform 2 when the truck 100 travels. It is a baffle plate for rectifying the flowing air. Details of the inclined plate 44 will be described later.

  The tilt 5 is a plate-like member installed so that it can be opened and closed in the up-down direction around the end of the floor of the loading platform 2 in the left-right direction. As shown in FIG. 2, the side wall of the loading platform 2 when the wing door 4 is closed is formed by the tilt 5 and the first plate member 42 of the wing door 4. FIG. 2 is a side view of the truck 100 with the wing door 4 and the tilt 5 closed in the first embodiment. In FIG. 1 and FIG. 2, the cage 5 is composed of two plate-like members that are substantially adjacent to each other in the front-rear direction of the loading platform 2. However, the present invention is not limited to this, and the tilt 5 may be composed of a single plate-like member that covers from the front end to the rear end of the loading platform 2.

  The rear door 6 is a double door, for example, provided at the rear end of the loading platform 2 and fixed to the door frame 61 (corresponding to the frame member of the present invention) provided at the rear end of the floor of the loading platform 2 so as to be opened and closed. Has been. In the present embodiment, the rear door 6 of the double door is provided at the rear end of the loading platform 2. However, the present invention is not limited to this, and the rear door 6 is slid in the upward direction or the horizontal direction, for example. A slide door may be used, and a rear wall that cannot be opened and closed may be provided instead of the rear door 6 and the door frame 61.

  Next, the inclined plate 44 of the wing door 4 will be described. FIG. 3A is a side view of the loading platform 2 including the inclined plate 44 in a state where the wing door 4 and the cage 5 are closed. FIG. 3B is a view of the loading platform 2 including the inclined plate 44 as viewed from above in a state in which the wing door 4 and the cage 5 are closed. FIG. 3C is a view of the loading platform 2 including the inclined plate 44 as viewed from the back in a state in which the wing door 4 and the cage 5 are closed.

  As shown in FIGS. 3A and 3B, the inclined plate 44 is inclined inward as it goes behind the track 100. More specifically, as shown in FIG. 3A, the surface of the inclined plate 44 connected to the upper surface of the loading platform 2 is inclined downward toward the back of the truck 100. 3B, the surface of the inclined plate 44 connected to the side surface of the loading platform 2 is inclined toward the center of the loading platform 2 as it goes behind the truck 100. Such an inclined plate 44 gently guides the air flowing backward along the side surface and the upper surface of the track 100 when the track 100 travels. Thereby, generation | occurrence | production of the air vortex in the back of the loading platform 2 can be suppressed, and the fuel consumption at the time of driving | running | working of the truck 100 can be improved now.

  The width of the inclined plate 44 (the length of the loading platform 2 in the front-rear direction) is not particularly limited in the present invention, but may be, for example, about 300 mm. In addition, the inclined plate 44 may be bonded to the wing door 4 by, for example, welding or the like, and is inclined inward toward the back of the track 100 with the same member as the wing door 4 by, for example, bending. It may be formed.

In the first embodiment, the length of the side surface portion of the loading platform 2 of the inclined plate 44, that is, the maximum length L _t from the uppermost portion to the lowermost portion of the inclined plate 44 when the wing door 4 is closed is 2 and 3A, the length _Lb1 from the uppermost part to the lowermost part of the first plate-like member 42 in a state where the wing door 4 is closed is substantially equal. However, this invention is not limited to this, The length of the side part in the loading platform 2 of the inclined plate 44 may be shorter, and may be longer like 2nd Embodiment mentioned later.

  FIG. 4 is a side view of the track 100 including the inclined plate 44 in a state where the wing door 4 and the wing 5 are opened. As described above, the inclined plate 44 is provided on the wing door 4. Therefore, as shown in FIG. 4, when the wing door 4 is opened, the inclined plate 44 is also opened together with the wing door 4. With such a configuration, the area of the opening (shaded portion in FIG. 4) of the loading platform 2 generated by opening the wing door 4 and the tilt 5 is not reduced by the inclined plate 44, and a wide opening is ensured. Therefore, it is easy to load and unload the load through the opening, and high load handling workability can be ensured.

  FIG. 5 is a cross-sectional view of the inclined plate 44 and the door frame 61. 5A is a side view of the track 100 similar to FIG. 2, and FIG. 5B is a top view of a cross section taken along line AA shown in FIG. 5A. As shown in FIG. 5B, the door frame 61 has a cross-sectional shape that matches the inclination of the inclined plate 44, and is arranged along the inside of the inclined plate 44 according to the inclination of the inclined plate 44. In the first embodiment, the rear end portion of the inclined plate 44 is substantially in the same position as the rear end portion of the door frame 61, and the inclined plate 44 further protrudes from the door frame 61 toward the rear side of the track 100. do not do. The door frame 61 shown in FIG. 5B is the left part of the door frame 61 that surrounds the four sides of the rear door 6, but the right and upper parts of the rear door 6 are similarly inclined. The cross-sectional shape according to the inclination of the plate 44 may be provided, and it may be arranged along the inside of the rear end portion of the inclined plate 44 according to the inclination of the inclined plate 44.

  5B, the length (width) parallel to the front-rear direction of the loading platform 2 in the door frame 61 is smaller than the length (width) parallel to the front-rear direction of the loading platform 2 in the inclined plate 44. For this reason, in the state which opened the wing door 4, the situation where the opening area of the loading platform 2 becomes narrow with the width | variety of the door frame 61 can be avoided.

  In addition, about the inclination with respect to the front-back direction of the loading platform 2 of the inclination board 44, it does not limit in this invention. For example, the inclination at which the reduction rate of the air resistance is maximized may be experimentally examined, and the inclination of the inclined plate 44 may be set to the determined inclination.

  As described above, the cargo bed structure according to the first embodiment of the present invention is a truck cargo bed structure having a wing body structure in which the wing door 4 is provided so as to be openable and closable. In the rear end portion in the front-rear direction, there is an inclined plate 44 that is inclined inward as it goes behind the loading platform 2.

  With such a configuration, in the loading platform structure of the truck 100, the air flowing along the side surface and the upper surface of the loading platform 2 during traveling of the truck 100 can be rectified by the inclined plate 44. Therefore, the air resistance during traveling of the truck 100 can be suppressed, and the fuel efficiency of the truck 100 can be improved. Since the inclined plate 44 is provided at the rear end portion of the wing door 4, the inclined plate 44 is also opened together with the wing door 4 when the wing door 4 is opened. There is no interference with the opening. Moreover, since it is not necessary to increase the width of the door frame 61 in order to provide the inclined structure, the opening area of the loading platform 2 can be increased. For this reason, even if the inclined plate 44 is provided, cargo handling workability in the loading platform 2 can be ensured.

<Second Embodiment>
Hereinafter, a second embodiment of the present invention will be described. FIG. 6 is a view for explaining a cargo bed structure according to the second embodiment of the present invention. FIG. 6 is a view of the truck 100 as viewed from the side in a state in which the wing door 4 and the wing 5 are closed as in FIG. 2.

As shown in FIG. 6, the load carrier structure according to the second embodiment is such that the length L _t from the uppermost part to the lowermost part of the inclined plate 44 is the first plate-like member when the wing door 4 is closed. 42 is approximately equal to the length L _b1 from the top to the bottom of 42 and the length L _g from the top to the bottom of the cage 5. That is, in the second embodiment, the inclined plate 44 extends to the vicinity of the floor of the loading platform 2 in a state where the wing door 4 is closed.

  Thereby, the area of an inclination board can be enlarged rather than 1st Embodiment. For this reason, the air resistance at the time of truck running can be suppressed more.

  FIG. 7 is a diagram illustrating the truck 100 in a state in which the wing door 4 and the tilt 5 are opened in the second embodiment. In FIG. 7, as in FIG. 1, the track 100 is viewed obliquely from the left side. As shown in FIG. 7, as in the first embodiment, when the wing door 4 is opened, the inclined plate 44 is also opened together with the wing door 4. With such a configuration, when the wing door 4 is opened, the inclined plate 44 does not narrow the opening area of the loading platform 2.

In FIG. 6, the length L _t from top to bottom of the inclined plate 44, the length L _b1 from top to bottom of the first plate member 42, from the top of the tilt 5 top Although it is assumed that the length is approximately equal to the length L _g up to the bottom, the present invention is not limited to this. For example, the length L _t from the top to the bottom of the inclined plate 44 is longer than the length L _b1 from the top to the bottom of the first plate member 42, and from the top of the first plate member 42. may be such that the less the length plus the length L _g from the top of the length L _b1 and tilt 5 of to the bottom to the bottom. Even in such a configuration, the area of the inclined plate 44 can be made larger than that in the first embodiment, so that the effect of reducing the air resistance during truck traveling can be improved.

As described above, in the loading platform structure of the second embodiment, the maximum length L _t from the uppermost part to the lowermost part of the inclined plate 44 in a state where the wing door 4 is closed is the wing door 4 being closed. The length from the top to the bottom of the first plate-like member 42 in a state where the length is longer than the length L _b1 from the top to the bottom of the first plate-like member in the state and the wing door 4 is closed. shorter than the length plus the length L _g from top to bottom.

  With such a configuration, the area of the inclined plate 44 can be increased, so that the air resistance during truck running can be effectively suppressed.

<Third Embodiment>
Hereinafter, a third embodiment of the present invention will be described. FIG. 8 is a diagram for explaining a cargo bed structure according to a third embodiment of the present invention. FIG. 8 is a view of the truck 100 as viewed from the side in a state in which the wing door 4 and the cage 5 are closed, as in FIGS. 2 and 6.

  As shown in FIG. 8, in addition to the inclined plate 44 of the first embodiment, the loading platform structure according to the third embodiment includes an inclined plate 51 (an inclined side inclined portion) provided at the rear end portion of the tilt 5. (Corresponding to a plate). The inclined plate 51 is inclined at the same angle as the inclined plate 44 and inward as it goes to the back of the track 100. In addition, as shown in FIG. 8, when the cage 5 is composed of two plate-like members that are substantially adjacent to each other in the front-rear direction of the loading platform 2, the inclined plate 51 is provided at the rear end of the rear cage 5. .

  In addition, the inclined plate 51 may be bonded to the tilt 5 by, for example, welding or the like, and is formed to be inclined inward toward the back of the track 100 with the same member as the tilt 5 by, for example, bending. May be.

  FIG. 9 is a diagram showing the truck 100 in a state in which the wing door 4 and the pawl 5 are opened in the third embodiment. In FIG. 9, as in FIGS. 1 and 7, the track 100 is viewed from the diagonally left rear direction. As shown in FIG. 9, as in the first and second embodiments, when the wing door 4 is open, the inclined plate 44 is also opened together with the wing door 4. When the tilt 5 is opened, the inclined plate 51 is also opened downward together with the tilt 5. With such a configuration, the inclined plate 44 and the inclined plate 51 do not narrow the opening area of the loading platform 2 in a state where the wing door 4 and the tilt 5 are opened.

  As described above, in the loading platform structure of the third embodiment, the tilt has the tilt-side tilted plate (sloped plate 51) that is tilted inward as it goes behind the track at the rear end of the tilt.

  With such a configuration, the combined area of the inclined plate 44 and the inclined plate 51 can be increased, and the air resistance during truck traveling can be effectively suppressed.

<Fourth embodiment>
Hereinafter, a fourth embodiment of the present invention will be described. FIG. 10 is a diagram for explaining a cargo bed structure according to a fourth embodiment of the present invention. FIG. 10 is a view of the truck 100 as viewed from the side in a state in which the wing door 4 and the cage 5 are closed, as in FIGS. 2, 6, and 8.

As shown in FIG. 10, in the loading platform structure according to the fourth embodiment, the inclined plate 44 described in the first embodiment is extended to the rear side of the truck 100, and the door frame 61 of the rear door 6. only projecting length L _p of the rear end of. Here, since the total length of the truck is regulated by safety standards, road traffic laws, and the like, the total length of the truck 100 including the extended portion of the inclined plate 44 needs to be accommodated within the regulated dimensions. For this reason, it is necessary to shorten the length of the loading platform 2 in the front-rear direction as the protruding length L _p of the inclined plate 44 is increased, and the capacity of the loading platform 2 is reduced. On the other hand, the effect of reducing the air resistance by the inclined plate 44 increases as the length of the protruding portion of the inclined plate 44 increases. Thus, since there is a trade-off relationship between the storage volume of the loading platform 2 and the length L _p of the protruding portion of the inclined plate 44, the length L _p of the protruding portion of the inclined plate 44 is not particularly limited in the present invention. As an example, the length L _p of the protruding portion of the inclined plate 44 may be about 100 mm, for example.

  By providing the protruding portion of the inclined plate 44, the length (width) in the front-rear direction of the loading platform 2 of the entire inclined plate 44 is made longer than that of the inclined plate 44 of the first to third embodiments. It may be the same length.

  As described above, in the cargo bed structure according to the fourth embodiment, the rear end of the inclined plate 44 protrudes from the rear end of the door frame 61 by a predetermined length. With such a configuration, it is possible to improve the effect of reducing the air resistance during truck traveling by the inclined plate 44.

The platform structures according to the first to fourth embodiments described above are not independent from each other, and the platform structures according to the first to fourth embodiments may be arbitrarily combined. For example, when the loading platform structure according to the second embodiment and the loading platform structure according to the fourth embodiment are combined and the wing door 4 is closed, the length from the top to the bottom of the inclined plate 44 is as follows. L _t is substantially equal to a length obtained by adding a length L _b1 from the top to the bottom of the first plate-like member 42 and a length L _g from the top to the bottom of the cage 5; the inclined plate 44 and extending rearward, may be configured so as to protrude by a length L _p from the door frame 61.

  The present invention is useful for a truck bed structure having a wing body structure.

DESCRIPTION OF SYMBOLS 100 Truck 1 Cab 2 Loading platform 3 Front wall 4 Wing door 41 Beam part 42 1st plate-shaped member 43 2nd plate-shaped member 44 Inclined plate 5 Awl 51 Inclined plate 6 Rear door 61 Door frame

Claims (6)

A truck bed structure having a wing body structure in which a wing door can be opened and closed,
The wing door has an inclined plate that is inclined inwardly toward the rear end of the loading platform at a rear end portion in the front-rear direction of the loading platform.
Loading platform structure. The wing door includes a first plate member that covers a side surface of the cargo bed when the wing door is closed, and a second plate member that covers an upper surface of the cargo bed when the wing door is closed. ,
The inclined plate is provided at a rear end portion of both the first plate-like member and the second plate-like member.
The cargo bed structure according to claim 1. A frame member provided at the rearmost end of the loading platform perpendicular to the floor of the loading platform and the front-rear direction of the loading platform;
Further comprising
In a state where the wing door is closed, an outer surface of the frame member is in contact with an inner surface of the inclined plate.
The cargo bed structure according to claim 2. In a state where the wing door is closed, the wing door further includes a tilt covering the side surface of the cargo bed together with the first plate-like member,
The maximum length from the top to the bottom of the inclined plate in the state where the wing door is closed is longer than the length from the top to the bottom of the first plate member in the state where the wing door is closed. In a state where the wing door is closed, the length from the uppermost part to the lowermost part of the first plate-like member and the length from the uppermost part to the lowermost part of the tilt are shorter than the length.
The cargo bed structure according to claim 2. In a state where the wing door is closed, the wing door further includes a tilt covering the side surface of the cargo bed together with the first plate-like member,
The tilt has a tilt side inclined plate that is inclined inward toward the rear of the track at the rear end of the tilt.
The cargo bed structure according to claim 2. The rear end of the inclined plate protrudes by a predetermined length from the rear end of the frame member.
The cargo bed structure according to claim 3.

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