JP4147133B2 - Skeleton structure of wing type cargo bed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a skeletal structure of a loading platform of a wing body type truck.
[0002]
[Prior art]
FIGS. 5 to 7 show an example of a conventional wing body type truck. A front gate frame 4 is erected along the rear surface of the cab 3 at the front end of the floor 2 of the loading platform 1. A rear gate frame 5 is erected on the rear end of the floor 2 of the loading platform 1, and further, an opening 6 is provided at both left and right ends of the floor 2 of the loading platform 1 so as to be openable and closable. A pair of left and right wing roofs 7 that cover the upper surface and the side surface between them are provided so as to be openable and closable by the operation of the hydraulic cylinder 8.
[0003]
In addition, there is also a so-called full wing type in which the lower ends of the left and right wing roofs 7 are respectively extended to the left and right ends of the floor 2 of the loading platform 1 without providing the tilt 6.
[0004]
As shown in FIG. 7, the front gate frame 4 and the rear gate frame 5 each have rectangular outer frames 9 and 10, and the longitudinal center portion of the outer frame upper member extends in the longitudinal direction of the loading platform 1. They are connected to each other by a center beam 11.
[0005]
The front gate frame 4 has reinforcing members 12 arranged at predetermined intervals in the outer frame 9 and is covered with an outer plate (not shown).
[0006]
The rear gate frame 5 is provided with a double door rear door 13 (see FIG. 5) in an outer frame 10.
[0007]
In the conventional case, as shown in FIG. 6, the wing roof 7 is generally a corner formed by extruding a roof frame 15 to which an outer plate 14 is attached and a side panel 17 to which a plurality of corrugated outer plates 16 are attached. By connecting at a substantially right angle through the rail 18, it is formed in an L-shaped cross section. Here, as a prior art document related to the structure of the wing loading platform, the following prior application 1 and the like already exist.
[0008]
[Prior Application 1]
Japanese Patent Application No. 2002-360462 Specification
[Problems to be solved by the invention]
However, in the skeleton structure of the conventional wing type loading platform as shown in FIG. 5 to FIG. 7, the front beam frame 4 and the rear gate frame 5 are center beams 11 having a large slenderness ratio only at the center portion of the outer frame upper member. Therefore, there is a problem that the front gate frame 4 and the rear gate frame 5 are swayed or twisted due to the inertial force or vibration caused when the truck travels.
[0010]
Accordingly, there is a concern that high stress concentrates on each coupling portion of the center beam 11, the front gate frame 4, and the rear gate frame 5, and deformation or cracking occurs in the portion.
[0011]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a wing-type gantry frame structure that can suppress phenomena such as shaking and twisting that occur in the front gate frame and the rear gate frame during truck traveling.
[0012]
[Means for Solving the Problems]
Claim 1 of the present invention includes a front gate frame erected at the front end of the cargo bed, a rear gate frame erected at the rear end of the cargo bed, and left and right sides that can be opened and closed at both ends in the width direction of the cargo bed. In a wing-type loading platform having a pair of wings, a pair of left and right wing roofs that cover the upper surface between the front gate frame and the rear gate frame, and that can be opened and closed. The outer frame positioned above the portion to be formed is formed in a substantially triangular shape when viewed from the front, the apex of the front gate frame and the upper part of the rear gate frame are connected by a center beam, and face the triangular partial outer frame of the front gate frame The present invention relates to a skeletal structure of a wing type loading platform characterized in that a roof end member capable of coming into contact with the triangular outer frame of the front gate frame is provided at the end of the wing roof.
[0013]
[0014]
Claim 2 of the present invention covers the front gate frame erected at the front end of the load carrier floor, the rear gate frame erected at the rear end of the load carrier floor, the upper surface and the side surface between the front gate frame and the rear gate frame. In the wing type loading platform having a pair of left and right full wing roofs that can be opened and closed, the outer frame of the front gate frame is formed in a substantially triangular shape when viewed from the front, and the apex of the front gate frame and the upper part of the rear gate frame are formed by a center beam. A frame structure of a wing-type loading platform, characterized in that a roof end member capable of coming into contact with the outer frame of the front gate frame is provided at the end of the full wing roof connected to the outer frame of the front gate frame. It is.
[0015]
[0016]
Claim 3 of the present invention relates to the skeletal structure of the wing type loading platform according to claim 1 or 2, wherein a rear door is provided in the rear gate frame surface.
[0017]
According to the above means, the following operation can be obtained.
[0018]
According to the first aspect of the present invention, the upper part of the front gate frame is formed in a substantially triangular shape when viewed from the front, and the apex of the outer frame is connected to the rear gate frame via the center beam. Therefore, the load applied to the front gate frame can be supported by the base portion and the apex of the outer frame, so that the rigidity of the front gate frame is improved, and the swinging, twisting, and the like of the front gate frame that occur during truck traveling can be suppressed.
[0019]
[0020]
According to claim 2 of the present invention, the outer frame of the front gate frame is formed in a substantially triangular shape when viewed from the front, and the apex of the outer frame is connected to the rear gate frame via the center beam. Since it can be supported by the base portion and the apex of the outer frame, the rigidity of the front gate frame is improved, and the swinging and twisting of the front gate frame that occurs during truck traveling can be suppressed.
[0021]
[0022]
According to the third aspect of the present invention, since the rear door is provided on the rear gate frame, cargo can be loaded and unloaded from the rear part of the cargo bed via the rear door, and the parties can enter and leave the cargo bed.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0024]
FIG. 1 shows a first example of an embodiment of the present invention, and the portions denoted by the same reference numerals as those in FIG. 7 represent the same items.
[0025]
In the skeleton structure of the wing type loading platform, the front gate frame 19 is erected at the front end of the floor 2 of the loading platform 1, the rear gate frame 5 is erected at the rear end, and the doors 6 are provided at both the left and right ends of the floor 2 so as to be openable and closable. In the wing-type loading platform in which a pair of left and right wing roofs 20 covering the upper surface between the upper gate frame and the rear gate frame 5 and the side surface above the cage 6 are openable and closable, the upper gate frame 19 is located above the portion facing the front edge of the cage. The outer frame 21 positioned at is formed so as to be a substantially isosceles triangle when viewed from the front.
[0026]
The front gate frame 19 has a reinforcing member 22 disposed in a cross shape in the outer frame 21 and is covered with an outer plate (not shown).
[0027]
Further, the outer frame 21 has a triangular beam and a center beam 11 extending in the longitudinal direction of the upper member of the outer frame 10 of the rear gate frame 5 in parallel with the floor 2 in the longitudinal direction of the loading platform 1. It is connected.
[0028]
Further, a roof end member 23 is provided at the end of the pair of left and right wing roofs 20 on the front gate frame 19 side so as to cover the end surface and abut against the outer frame 21 of the triangular portion of the front gate frame 19. ing.
[0029]
Other than the above, there is no difference from the conventional example shown in FIG.
[0030]
The operation of the first example of the embodiment of the present invention will be described below.
[0031]
As described above, the upper part of the front gate frame 19 is formed into a substantially isosceles triangle when viewed from the front above the portion of the outer frame 21 that contacts the tilt 6, and the apex of the outer frame 21 is connected to the rear gate frame 5 by the center beam 11. Then, since the load concerning the front gate frame 19 can be supported by the base part and the top of the outer frame 21, the rigidity of the front gate frame 19 improves.
[0032]
If the roof end member 23 is provided at the end of the wing roof 20 on the front gate frame 19 side, the rigidity of the wing roof 20 near the roof end member 23 is improved.
[0033]
As described above, according to the first example, the rigidity of the front portal frame 19 and the wing roof 20 is improved, so that the swinging, twisting, and the like of the front portal frame 19 that occur during truck traveling can be suppressed.
[0034]
Further, since a load that twists the joint portion does not act on the joint portion between the front portal frame 19 and the center beam 11, it is advantageous in terms of strength.
[0035]
Furthermore, the front gate frame 19 can be lightened and the center of gravity can be reduced.
[0036]
FIG. 2 shows a first reference example, and the same reference numerals as those in FIG. 7 or FIG.
[0037]
In the skeleton structure of the wing type loading platform, a front gate frame 19 is erected at the front end of the floor 2 of the loading platform 1, a rear gate frame 24 is erected at the rear end, and the doors 6 are provided at both right and left ends of the floor 2 so as to be openable and closable. In the wing-type loading platform in which a pair of left and right wing roofs 25 that covers the upper surface between the upper gate frame 24 and the upper side of the cage 6 are openable and closable, the front gate frame 19 and the rear gate frame 24 have respective tilts 6. The outer frames 21 and 26 positioned above the portions facing the both ends are formed so as to have a substantially isosceles triangle when viewed from the front.
[0038]
The front gate frame 19 and the rear gate frame 24 have reinforcing members 22 arranged in a cross shape in the outer frames 21 and 26, respectively, and are covered with an outer plate (not shown).
[0039]
Further, the outer frames 21 and 26 of the front gate frame 19 and the rear gate frame 24 are connected to each other by a center beam 11 that extends in parallel with the floor 2 in the longitudinal direction of the cargo bed 1 at the apex and apex of the triangle shape.
[0040]
Furthermore, roof end members 27 are provided at both ends of the wing roof 25 so as to cover the end surfaces and to come into contact with the outer frames 21 and 26 of the triangular portions of the front gate frame 19 and the rear gate frame 24, respectively. Yes.
[0041]
Hereinafter, the operation of the first reference example will be described.
[0042]
As described above, the upper part of the outer frame 21 and 26 of the front gate frame 19 and the rear gate frame 24 is formed into an approximately isosceles triangle when viewed from the front, and the apexes of the outer frames 21 and 26 are centered. When connected to each other by the beam 11, the load applied to the front gate frame 19 and the rear gate frame 24 can be supported by the bases and vertices of the outer frames 21 and 26, so that the rigidity of the front gate frame 19 and the rear gate frame 24 is improved.
[0043]
If the roof end members 27 are provided at both ends of the wing roof 25, the rigidity of the wing roof 25 in the vicinity of the roof end member 27 is improved.
[0044]
As described above, according to the second example, the rigidity of the front gate frame 19, the rear gate frame 24, and the wing roof 25 is improved, so that the swinging, twisting, and the like of the front gate frame 19 and the rear gate frame 24 that occur during truck traveling can be suppressed. .
[0045]
Further, since a load that twists the joint portion does not act on the joint portion between the front gate frame 19 and the rear gate frame 24 and the center beam 11, it is advantageous in terms of strength.
[0046]
Further, the front gate frame 19 and the rear gate frame 24 can be reduced in weight and the center of gravity can be reduced.
[0047]
FIG. 3 shows a second example of the embodiment of the present invention, and the same reference numerals as those in FIG. 7 denote the same components.
[0048]
In the skeleton structure of the wing type loading platform, the front gate frame 28 is erected at the front end of the floor 2 of the loading platform 1 and the rear gate frame 5 is erected at the rear end to cover the upper surface and the side surface between the front gate frame 28 and the rear gate frame 5. In a wing-type loading platform in which a pair of left and right full-wing roofs 29 are provided so as to be openable and closable, the outer frame 30 of the front gate frame 28 erected at the front end of the floor 2 of the loading platform 1 is substantially isosceles triangular when viewed from the front. Is formed.
[0049]
The front gate frame 28 has a reinforcing member 31 arranged in a cross shape in the outer frame 30 and is covered with an outer plate (not shown).
[0050]
Further, the outer frame 31 is formed by a center beam 11 extending in parallel with the floor 2 in the longitudinal direction of the loading platform 1 between the apex of the triangular shape and the longitudinal central portion of the upper member of the outer frame 10 of the rear gate frame 5. It is connected.
[0051]
Further, a roof end member 32 that covers the end surface of the pair of left and right full wing roofs 29 on the front gate frame 28 side and can abut on the outer frame 30 of the triangular portion of the front gate frame 28 is provided. Provided.
[0052]
Other than the above, there is no difference from the conventional example shown in FIG.
[0053]
The operation of the second example of the embodiment of the present invention will be described below.
[0054]
As described above, when the front gate frame 28 is formed into a substantially isosceles triangle when viewed from the front, and the apex of the outer frame 30 is connected to the rear gate frame 5 by the center beam 11, the load applied to the front gate frame 28 is reduced. Therefore, the rigidity of the front portal frame 28 is improved.
[0055]
Further, when the roof end member 32 is provided at the end of the full wing roof 29 on the front gate frame 28 side, the rigidity of the full wing roof 29 in the vicinity of the roof end member 32 is improved.
[0056]
As described above, according to the third example, the rigidity of the front portal frame 28 and the full wing roof 29 is improved, so that the swinging, twisting, and the like of the front portal frame 28 that occur during truck traveling can be suppressed.
[0057]
FIG. 4 shows a second reference example , and the same reference numerals as those in FIG. 7 or FIG.
[0058]
In the skeleton structure of the wing type loading platform, the front gate frame 28 is erected at the front end of the floor 2 of the loading platform 1, and the rear gate frame 33 is erected at the rear end to cover the upper surface and the side surface between the front gate frame 28 and the rear gate frame 33. In the wing type loading platform in which a pair of left and right full wing roofs 34 are provided so as to be openable and closable, the outer frames 30 and 35 of the front gate frame 28 and the rear gate frame 33 are formed so as to have a substantially isosceles triangle as viewed from the front. ing.
[0059]
The front gate frame 28 and the rear gate frame 33 have reinforcing members 31 arranged in a cross shape in the outer frames 30 and 35, respectively, and are covered with an outer plate (not shown).
[0060]
In addition, the outer frames 30 and 35 of the front gate frame 28 and the rear gate frame 33 are connected to each other by a center beam 11 extending in parallel with the floor 2 in the longitudinal direction of the cargo bed 1 at the apex and apex of the triangular shape.
[0061]
Furthermore, roof end members 36 are provided at both ends of the full wing roof 34 so as to cover the end surfaces and to come into contact with the outer frames 30, 35 of the triangular portions of the front gate frame 28 and the rear gate frame 33, respectively. ing.
[0062]
Hereinafter, the operation of the second reference example will be described.
[0063]
As described above, when the outer frames 30 and 35 of the front gate frame 28 and the rear gate frame 33 are formed in a substantially isosceles triangle when viewed from the front, and the apexes of the outer frames 30 and 35 are connected to each other by the center beam 11, Since the load applied to 28 and the rear gate frame 33 can be supported by the base and the apex of the outer frames 30 and 35, the rigidity of the front gate frame 28 and the rear gate frame 33 is improved.
[0064]
Further, when the roof end members 36 are provided at both ends of the full wing roof 34, the rigidity of the full wing roof 34 in the vicinity of the roof end member 36 is improved.
[0065]
Thus, according to the second reference example , the rigidity of the front gate frame 28, the rear gate frame 33, and the full wing roof 34 is improved. Can be suppressed.
[0066]
Further, a load that twists the joint portion does not act on the joint portion between the front gate frame 28 and the rear gate frame 33 and the center beam 11, which is advantageous in terms of strength.
[0067]
Further, the front gate frame 28 and the rear gate frame 33 can be reduced in weight and the center of gravity can be reduced.
[0068]
It should be noted that the skeleton structure of the wing type loading platform of the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the scope of the present invention.
[0069]
【The invention's effect】
As described above, according to the wing type carrier frame structure of the present invention, the following various excellent effects can be obtained.
[0070]
(1) According to the skeletal structure of the wing type loading platform according to claim 1 of the present invention, the outer frame located above the portion of the front gate frame that contacts the tilt is formed in a substantially triangular shape when viewed from the front, Since the top of the outer frame is connected to the rear gate frame via the center beam, the load applied to the front gate frame can be supported by the base and the top of the outer frame. The front gate frame can be prevented from shaking and twisting.
[0071]
[0072]
(2) According to the wing-type bed of the skeletal structure according to claim 2 of the present invention, formed into a substantially triangular when viewed from the front of the outer frame of Qianmen frame, rear gate frame vertices of the outer frame via the center beam Therefore, the load applied to the front gate frame can be supported by the base portion and the apex of the outer frame, so that the rigidity of the front gate frame is improved and the swinging or twisting of the front gate frame that occurs during truck traveling can be suppressed.
[0073]
[0074]
(3) According to the wing-type bed of the skeletal structure according to claim 3 of the present invention, since providing the rear door to the rear door frame, loading unloading cargo from the loading platform rear through the rear door, to the loading platform business Can go in and out.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a first example of an embodiment of a skeletal structure of a wing type loading platform of the present invention.
FIG. 2 is a schematic diagram showing a first reference example.
FIG. 3 is a schematic view showing a second example of the embodiment of the skeletal structure of the wing type loading platform of the present invention.
FIG. 4 is a schematic diagram showing a second reference example.
FIG. 5 is a perspective view showing a conventional wing body type truck.
6 is a perspective view of the wing associated with FIG. 5. FIG.
7 is a schematic diagram of a skeletal structure of a loading platform related to FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Loading platform 2 Floor 5 Rear gate frame 6 Lift 11 Center beam 13 Rear door 19 Front gate frame 20 Wing roof 23 Roof end member 28 Front gate frame 29 Full wing roof 32 Roof end member

Claims (3)

  A front gate frame erected at the front edge of the cargo bed, a rear gate frame erected at the rear edge of the cargo bed, a pair of left and right tilts that can be opened and closed at both ends in the width direction of the cargo bed, A wing-type loading platform that has an upper surface between the rear gate frame and a pair of left and right wing roofs that can be opened and closed so as to cover the upper side of the upper side of the upper door frame, and is located outside the portion facing the upper edge of the front gate frame. The frame is formed in a substantially triangular shape when viewed from the front, the apex of the front gate frame and the upper part of the rear gate frame are connected by a center beam, and the front gate is attached to the end of the wing roof facing the triangular outer frame of the front gate frame. A skeleton structure of a wing-type cargo bed, wherein a roof end member capable of coming into contact with a triangular outer frame of the frame is provided. A pair of left and right front door frames standing at the front end of the loading platform floor, rear gate frame standing at the rear end of the loading platform floor, and the upper and side surfaces of the front gate frame and the rear gate frame that can be opened and closed. In the wing type loading platform having a full wing roof, the outer frame of the front gate frame is formed in a substantially triangular shape when viewed from the front, the apex of the front gate frame and the upper part of the rear gate frame are connected by a center beam, and the outside of the front gate frame A skeleton structure of a wing-type cargo bed, wherein a roof end member capable of abutting against an outer frame of a front gate frame is provided at an end of a full wing roof facing the frame. The skeleton structure of the wing type loading platform according to claim 1 or 2, wherein a rear door is provided in the rear gate frame surface.

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