JP4862839B2 - Lorry - Google Patents

Description

  The present invention relates to a truck equipped with a cargo box.

  2. Description of the Related Art Conventionally, in a lorry vehicle (see Patent Document 1) in which a box-shaped packing box is mounted on a vehicle body, various devices have been made in order to easily get on and off the opening for transporting loads provided in the packing box. I came.

In such a cargo vehicle, as shown in FIG. 14, there is one in which the opening 102 side at the rear part of the packing box 101 is lowered by one step, and by having such a packing box 101, it is easy to get on and off the opening 102. It was.
JP 2006-96244 A

  However, according to the safety standards for road transport vehicles, it is obliged to install a rush prevention device at the rear of the lorry. In the lorry where the opening 102 side of the rear of the cargo box 101 is formed one step lower, Providing the prevention device separately has a problem that it is extremely difficult to ensure the departure angle and the minimum ground clearance.

  The problem to be solved is to provide a cargo vehicle having a cargo box excellent in getting on and off, and ensuring a departure angle and a minimum ground clearance at the rear of the vehicle.

The invention according to claim 1 is a lorry including a vehicle main body and a cargo box mounted on the vehicle main body and having a low floor portion at a rear portion thereof, the connection fixing the vehicle main body and the low floor portion. The member is provided with a rush prevention device, and the vehicle main body and the cargo box are detachably fixed via the connecting member .

According to the first aspect of the present invention, it is possible to ensure the departure angle and the minimum ground clearance at the rear part of the lorry with the low floor part at the rear part of the cargo box. In addition, it is possible to reduce the manufacturing cost by reducing the number of steps for mounting the packing box on the vehicle body.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  FIGS. 1 to 13 show an embodiment of a truck 1 according to the present invention. As shown in FIGS. 1 to 3, the truck 1 includes a vehicle body 2 and a load mounted on the vehicle body 2. It is composed of a box 3.

  As shown in FIG. 1, the packing box 3 has a configuration in which a packing box body 4 having a rectangular parallelepiped shape is provided with an expansion portion 5 formed by expanding a part of the packing box body 4.

  As shown in FIG. 3, the packing box 3 includes an opening 6 for carrying a baggage formed by opening the rear surface portion 12 of the packing box 3.

  Here, the packing box body 4 is formed in a box shape having a substantially rectangular parallelepiped shape that is long in the vehicle length direction X. The packing box body 4 includes a front surface portion 7 and a left side surface portion 8 each made of a panel member. The right side surface portion 9, the top surface portion 10, and the bottom surface portion 11 are connected and surrounded, and the entire rear surface portion 12 is opened.

  Here, as shown in the figure, the bottom surface portion 11 is cut out in a rectangular shape by a predetermined area from the rear end in the vehicle length direction X toward the front in the vehicle length direction X (left direction in the drawing). Are provided so as to be able to communicate with each other.

  Here, the expansion portion 5 is formed by extending the bottom surface of the packing box 3 downward in correspondence with the penetration portion 13. An expansion comprising a panel member erected vertically downward from each of the front end 14, the left end 15 and the right end 16 formed in parallel with the front surface 7, the left side 8 and the right side 9. The front surface portion 17, the expansion portion left side surface portion 18, and the expansion portion right side surface portion 19 are formed by surrounding the horizontal direction of the expansion portion 5, and the expansion portion front surface portion 17, the expansion portion left side surface portion 18, and the expansion portion The lower portion of the extended portion 5 is closed by an extended portion bottom surface portion 20 made of a panel member formed in parallel with the floor surface portion 11 of the packing box body 4, which connects the lower portions of the right side surface portion 19. The extension front part 17 and the extension bottom part 20 are integrally formed. It is. Further, the extended portion rear side surface portion 21, the periphery of which is formed by the rear end in the vehicle length direction X of the extended portion left side surface portion 18, the extended portion right side surface portion 19, and the extended portion bottom surface portion 20, is formed open.

  Here, the expanded portion rear surface portion 21 of the expanded portion 5 and the rear surface portion 12 of the packing box body 4 formed to be open are formed continuously with each other, and together form the opening 6 of the packing box 3. Yes.

  Furthermore, the opening 6 of the packing box 3 is arranged continuously to the left and right side ends of the rear surface portion 12 of the packing box body 4 and the left and right side ends of the expansion portion rear surface portion 21 as shown in the figure. A pair of column members 22 and 23 such as steel frames provided at the left and right side ends of the opening 6 are provided, and a double door opening that is rotatably arranged by hinge portions 24 and 25 provided on the column members 22 and 23. The doors 26 and 27 can be opened and closed freely. The lower portions of the pair of column members 22 and 23 are connected by a lower member 6A such as a steel frame. The lower member 6A is provided with a pair of tail lamps 6B and 6B.

  In addition, the left side surface portion 28 of the packing box 3 has a substantially inverted L-shape formed by the left side surface portion 8 of the packing box body 4 and the extended portion left side surface portion 18. As will be described later, the extended portion left side surface portion 18. Is configured to be detachable. The right side surface portion 29 of the packing box 3 also has a substantially inverted L-shape formed by the right side surface portion 9 of the packing box body 4 and the extended portion right side surface portion 19. The surface portion 19 is also detachable. In this way, the packing box 3 is formed in which the opening 6 side is formed one step lower.

  Here, the attachment structure of the vehicle main body 2 and the cargo box 3 in the lorry 1 of the present embodiment will be described with reference to the drawings.

  As shown in the figure, the vehicle main body 2 and the packing box 3 include a rear end portion of a pair of vehicle frames 30 and 31 provided on the vehicle main body 2 in parallel with the vehicle length direction X (left and right direction in the figure), A first horizontal beam member 32 or a second horizontal beam member 33 having a longitudinal direction parallel to the vehicle width direction Y is provided at each position spaced from the end in front of the vehicle length direction X by a predetermined distance. It is erected.

  The bottom surface portion 11 of the packing box body 4 is abutted and supported by the upper surface portions of the first horizontal beam member 32 and the second horizontal beam member 33.

  In addition, the vehicle frames 30 and 31 and the bottom surface portion 11 of the cargo box body 4 are connected to the first crosspiece member 32 and the second horizontal crosspiece member 33 by the first connecting means 34 and the second connecting means which are fastening means such as bolts and nuts. The two connecting means 35 are detachably connected.

  Next, on the outer side surface in the vehicle width direction Y at the rear ends of the vehicle frames 30 and 31, a longitudinal direction is provided in parallel with the vertical direction, and a pair of first longitudinal members provided as stay members of the inrush prevention device B are provided. A crosspiece member 36 and a second vertical crosspiece member 37 are disposed. Here, the first vertical beam member 36 and the second vertical beam member 37 conform to the standards regarding the stay of the intrusion prevention device described in “Security Standard Article 18-2, Paragraph 3”. .

  Further, the first vertical beam member 36 and the second vertical beam member 37 are provided at the rear end portions of the vehicle frames 30 and 31 with a third connecting means 38 and a fourth connecting means 39 which are fastening means such as bolts and nuts. Are detachably connected.

  Further, the first vertical beam member 36 and the second vertical beam member 37 are formed in a flat plate-like first support member 40 and second support which are formed on the upper portion so as to have a cross-sectional area larger than the vertical beam members 36 and 37. The first frame member 36 and the second vertical beam member 37 are arranged on the vehicle frames 30 and 31 via the first support member 40 and the second support member 41. The provided first crosspiece member 32 can be placed.

  The first support member 40 and the second support member 41 are detachably connected to the first crosspiece member 32 by a fifth connection means 42 and a sixth connection means 43 which are fastening means such as bolts and nuts. Is.

  Subsequently, the lower ends of the first vertical beam member 36 and the second vertical beam member 37 are extended toward the rear in the vehicle length direction X, and the length of the vehicle length direction X is set to the vehicle body 2. A third horizontal beam member 44 and a fourth horizontal beam member that are formed in a dimension that does not protrude rearward in the vehicle length direction X from the rear end of the cargo box 3 mounted on the vehicle, and are provided as a pair of spacer members of the inrush prevention device B. A crosspiece 45 is provided. Here, the third crosspiece member 44 and the fourth crosspiece member 45 are adapted to the standards relating to the spacer of the intrusion prevention device described in “Securities Standard Article 18-2, Paragraph 3”. .

  Further, the third horizontal beam member 44 and the fourth horizontal beam member 45 are formed on the outer side in the vehicle width direction Y of the third horizontal beam member 44 and the fourth horizontal beam member 45 in parallel with the vehicle length direction X. 45, a fifth crosspiece member 46 formed such that its length in the vehicle length direction X does not protrude rearward from the rear end of the cargo box 3 mounted on the vehicle body 2 in the vehicle length direction X. And a sixth crosspiece member 47. Each of the fifth horizontal beam member 46 and the sixth horizontal beam member 47 is disposed so as to be able to contact and support slightly in the vehicle width direction Y inside the left and right end portions of the bottom surface portion 20 of the extended portion of the cargo box 3. Yes.

  Here, the third horizontal beam member 44, the fourth horizontal beam member 45, the fifth horizontal beam member 46, and the sixth horizontal beam member 47 are all in the vehicle width direction Y. And 8th as a bumper member of the intrusion prevention device B which is connected by a seventh crosspiece member 48 arranged in parallel to the vehicle width direction and whose rear ends in the vehicle length direction X are arranged in parallel to the vehicle width direction Y. They are connected by a horizontal beam member 49, and further, an intermediate portion from the front end to the rear end in the vehicle length direction X is connected by a ninth horizontal beam member 50 to form a so-called fence-like body 51. Here, the eighth crosspiece member 49 formed on the square member conforms to the standards relating to the bumper of the intrusion prevention device stipulated in "Security Standard Article 18-2, Paragraph 3".

  Further, the rear end X in the vehicle length direction of each of the third horizontal beam member 44, the fourth horizontal beam member 45, the fifth horizontal beam member 46, and the sixth horizontal beam member 47 of the fence 51 is The expansion portion bottom surface portion 20 of the box 3 is detachably connected by a seventh connecting means 52, an eighth connecting means 53, a ninth connecting means 54, and a tenth connecting means 55 as fastening means such as bolts and nuts. It is what is done.

  Further, the front end of the fifth horizontal beam member 46 and the sixth horizontal beam member 47 in the vehicle length direction X is parallel and perpendicular to the first vertical beam member 36 and the second vertical beam member 37. The 3rd vertical beam member 56 and the 4th vertical beam member 57 which are arrange | positioned with the same height dimension are erected.

  The first vertical beam member 36, the second vertical beam member 37, the third vertical beam member 56, and the fourth vertical beam member 57 are installed above the vertical beam members 36, 37, 56, 57. They are connected by a third support member 58 that has an inverted U shape when viewed from the side.

  The third support member 58 is formed so that the upper surface portion can be abutted and supported by the floor surface portion 11 of the cargo box body 4 and the rear surface portion 12 can be abutted and supported by the expansion portion front surface portion 17. It is.

  Further, on the upper part of the third vertical beam member 56 and the fourth vertical beam member 57, the vehicle length direction X is ahead of the upper part of the third vertical beam member 56 and the fourth vertical beam member 57 in the vehicle length direction X. 10 and the 10th crosspiece member 59 formed in the dimension shape which becomes the front side rather than the 2nd horizontal crosspiece member 33 which is arrange | positioned in parallel and is connected to the vehicle frames 30 and 31 in the vehicle length direction X front end. And an eleventh crosspiece member 60.

  On top of the tenth crosspiece member 59 and the eleventh crosspiece member 60, a first crosspiece member 32 and a second crosspiece member 33 disposed on the vehicle frames 30, 31 can be placed. Is formed.

  Here, the tenth crosspiece member 59 includes eleventh connecting means 61 as fastening means such as bolts and nuts at the left end of the first horizontal crosspiece member 32 and the second horizontal crosspiece member 33 in the vehicle width direction Y. The twelfth connecting means 62 is detachably connected.

  Similarly, the eleventh connecting means 61 includes thirteenth connecting means 63 and fourteenth fastening means such as bolts and nuts at the right end in the vehicle width direction Y of the first and second crosspiece members 32 and 33. The connecting means 64 is detachably connected.

Here, the third to eleventh horizontal beam members 44 to 50, 59, 60 and the first to fourth vertical beam members 36 , 37 , 56, 57 are integrated with the vehicle body 2 by welding or the like. It is preferable that the mounting member T to which the packing box 3 is attached is configured.

  Further, the mounting member T includes the first vertical beam member 36 and the second vertical beam member 37 as stay members, the third horizontal beam member 44 and the fourth horizontal beam member 45 as space members, It is set as the structure provided with the intrusion prevention apparatus B which used the 8 horizontal crosspiece member 49 as the bumper member.

  In addition, the first attachment portion with which the extension portion left side surface portion 18 and the extension portion right side surface portion 19 can come into contact with the outer side surfaces in the vehicle width direction Y of the fifth and sixth cross beam members 46 and 47, respectively. 65 and a second mounting portion 66 are provided.

  The extension left side surface 18 and the extension right side surface 19 are respectively connected to the first attachment portion 65 or the second attachment portion 66 by a fifteenth connection means 67 or a sixteenth connection means 68 as a fastening means such as a bolt and a nut. It is detachably connected to a fence-like body 51 of an attachment member T as an underfloor frame member.

  The operation of the lorry 1 according to the present embodiment having the above configuration will be described.

  A method for mounting the cargo box 3 on the vehicle body 2 will be described.

First, the 3rd to 11th horizontal beam members 44 to 50, 59, 60 and the 1st to 4th vertical beam members 36 , 37 , 56, 57 are fixed to each other by welding or the like to form an integral structure. The first vertical beam member 36 and the second vertical beam member 37 of the mounting member are fixed to the rear ends of the vehicle frames 30 and 31 by the third connecting means 38 and the fourth connecting means 39, and the mounting member T Is mounted on the vehicle frames 30,31.

  Next, the first horizontal beam member 32 and the first horizontal beam member 32 are arranged on the upper portions of the vehicle frames 30 and 31, the first support member 40, the second support member 41, the tenth horizontal beam member 59 and the eleventh horizontal beam member 60. 2 crosspiece members 33 are installed, the first connecting means 34, the fifth connecting means 42, the sixth connecting means 43, the eleventh connecting means 61, the twelfth connecting means 62, and the thirteenth connecting means. Each is fixed by means 63 and fourteenth connecting means 64.

  Subsequently, the first horizontal rail member 32 connected to the vehicle frames 30, 31 of the vehicle main body 2 and the first horizontal rail member 32 in a state where the extended portion 5 is not provided below the through portion 13 of the main body 4. It is installed on the upper part of the two horizontal beam members 33 and on the upper part of the third support member 58 of the attachment member T. The bottom surface portion 11 of the vehicle main body 2, the first horizontal beam member 32, and the second horizontal beam member 33 are detachably connected by the second connecting means 35. Here, it is assumed that pillar members 22 and 23 are disposed in advance in the opening 6 of the packing box 3 and opening and closing doors 26 and 27 are disposed.

  Next, in the extension portion front surface portion 17 and the extension portion bottom surface portion 20 that are integrally formed and have a substantially L shape in side view, the extension portion front surface portion 17 is replaced with the third vertical beam member 56 and the fourth vertical beam member. 57, the first connecting means 34, the twelfth connecting means 62, and the thirteenth connecting part in a state where the extended part bottom face part 20 is in contact with the upper part of the fence-like body 51. It is fixed by the connecting means 63 and the fourteenth connecting means 64.

  Subsequently, the expansion portion left side surface portion 18 and the expansion portion right side surface portion 19 made of a panel member are fixed to the first attachment portion 65 and the second attachment portion 66 by the fifteenth connection means 67 and the sixteenth connection means 68. Thus, the extended portion 5 is formed. Here, the left side surface portion 18 and the right side surface portion 19 of the expansion portion are respectively connected to the left side surface portion 8 and the right side surface portion 9 of the cargo box body 4 by the connecting means such as bolts and nuts (not shown), and the third vertical side. It may be fixed to the crosspiece member 56 and the fourth vertical crosspiece member 57.

  Here, since the attachment member T includes the rush prevention device B, a vehicle that collides from the rear of the lorry 1 is received by the eighth crosspiece member 49 as a bumper member of the rush prevention device B. It is possible to prevent entry into the lower portion of the truck 1 and to minimize the damage caused by the rear-end collision.

  Further, by providing the mounting member T with the inrush prevention device B, by securing a space K below the rear part of the cargo box 3, the minimum ground height H at the rear part of the truck 1 and the rear of the truck 1 as shown in FIG. The departure angle θ of the vehicle can be increased, and it becomes easy to enter the cargo vehicle 1 on an unpaved road or the like.

  Furthermore, since the attachment member T is provided with the inrush prevention device B, it is possible to increase the height dimension of the rear portion of the cargo box 3 by securing the space K below the rear portion of the cargo box 3, so that the lower member The height dimension L1 of 6A (see FIG. 2) can be formed large, and the tail lamps 6B and 6B can be disposed on the lower member 6A disposed on the lower side of the opening 6 of the cargo box 3. Become. Accordingly, the structure of the pillar members 22 and 23 can be simplified, the dimension L2 (see FIG. 2) of the pillar members 22 and 23 in the vehicle width direction Y can be reduced, and the opening portion The size L3 (see FIG. 2) in the vehicle width direction Y of 6 can be formed large, and it becomes easy to get on and off the opening 6 of the cargo box 3, and the usability of the truck 1 is improved.

  Here, the packing box 3 includes an expansion portion 5 in the packing box main body 4, and includes an expansion portion bottom surface portion 20 formed one step lower than the bottom surface portion 11 of the packing box main body 4 on the opening 6 side at the rear of the packing box 3. As a result, the height of the rear side of the opening 3 on the side of the opening 6 can be made low, and the loading and unloading through the opening 6 of the packing box 3 can be facilitated.

  Further, the structure of the packing box 3 provided with the expansion portion 5 is a rectangular parallelepiped packing box body 4 that has been used as a conventional packing box 3 as disclosed in Patent Document 1, and a left side surface portion 8 of the packing box body 4. In addition, the extended portion left side surface portion 18 and the extended portion right side surface portion 19 are configured to include the extended portion 5 that is attached later on the right side surface portion 9. It is not necessary to form the side surface panel member in a step shape other than a rectangle, for example, an inverted L shape, and the conventional packing box 3 can be used as the packing box body 4, thereby reducing the manufacturing cost. It is possible.

  Further, the expansion portion 5 side surface portion and the expansion portion right side surface portion 19 are retrofitted by a fifteenth connection means 67 and a sixteenth connection means 68 such as bolts and screws, so that the expansion portion 5 is attached to the packing box body 4. It is possible to reduce the number of processes at the time of forming, shorten the working time, and suppress manufacturing costs such as labor costs.

Further, the third to eleventh horizontal beam members 44 to 50, 59, 60 and the first to fourth vertical beam members 36 , 37 , 56, and 57 are fixed to each other by welding or the like, and attached to the mounting member T as an integral structure. In practice, all the steps for connecting the vehicle body 2 and the cargo box 3 to the mounting member T through the first and second crosspiece members 32 and 33 are actually By fixing by the first to sixteenth connecting means 34, 35, 38, 39, 42, 43, 52, 53, 54, 55, 61, 62, 63, 64, 67, 68 as fastening means such as nuts, It is possible to reduce the number of processes when mounting the cargo box 3 on the vehicle main body 2 to shorten the working time, and to further suppress the manufacturing cost such as the labor cost.

  As described above, the embodiment includes a vehicle main body 2 and a cargo box 3 mounted on the vehicle main body 2 and having an extended portion floor surface portion 20 as a low floor portion at the rear portion corresponding to claim 1. In this example, the rush prevention device B is provided on an attachment member T which is a connecting member for fixing the vehicle main body 2 and the extended portion floor surface portion 20.

  In this case, it is possible to secure the departure angle θ and the minimum ground height H at the rear part of the lorry 1 having the extended floor surface part 20 at the rear part of the cargo box 3.

Further, in the embodiment, corresponding to claim 1 , the mounting member T as the connecting member is replaced with first to sixteenth connecting means 34, 35, 38, 39, 42, 43, 52 as fastening means such as bolts and nuts. , 53, 54, 55, 61, 62, 63, 64, 67, 68 make the vehicle main body 2 and the packing box 3 detachably fixed.

  In this case, it is possible to reduce the process for mounting the cargo box 3 on the vehicle main body 2 and to reduce the manufacturing cost.

  In addition, this invention is not limited to the content as described in the said Example, It can change suitably. For example, an eighth horizontal beam member 49 as a bumper member, a third horizontal beam member 44 and a fourth horizontal beam member 45 as spacer members, and a first vertical beam member 36 and second as a stay member. The shape and configuration of the vertical beam member 37 is limited to this as long as it conforms to the standard of the intrusion prevention device stipulated in the “Security Standard Article 18-2, Paragraph 3” as described above. It is not a thing. Moreover, the expansion part left side surface part 18 and the expansion part right side surface part 19 in the expansion part 5 of the packing box 3 may be fixed to the packing box body 4 by welding or the like. Further, the structure of the packing box 3 and the method of attaching to the vehicle body 2 are not limited to the above embodiment.

1 is a side view of a truck according to an embodiment of the present invention. FIG. 2 is a plan view of the truck. It is a rear view of a truck. It is a top view of a packing box main body same as the above. FIG. 5 is a cross-sectional view taken along the line AA in FIG. It is a top view of the principal part of a lorry. It is a sectional view of the important section of a cargo vehicle same as the above. It is a perspective view of an attachment member same as the above. It is a perspective view which shows the state which attached the attachment member to the vehicle main body same as the above. FIG. 10 is a perspective view showing a state in which the first crosspiece member and the second crosspiece member are attached in FIG. 9. FIG. 11 is a perspective view showing a state in which the first crosspiece member and the second crosspiece member are attached to the floor portion of the cargo box body in FIG. 10. FIG. 12 is a perspective view showing a state in which the front part of the extension part and the bottom part of the extension part are attached to the attachment member in FIG. 11. FIG. 13 is a perspective view showing a state in which the extension left side surface and the extension right side surface are attached to the attachment member in FIG. 12. It is a side view of the packing box in the conventional lorry.

DESCRIPTION OF SYMBOLS 1 Lorry vehicle 2 Vehicle main body 3 Cargo box 20 Expansion part floor surface part (low floor part)
B Inrush prevention device T Mounting member (connecting member)

Claims (1)

A truck equipped with a vehicle body, and a cargo box mounted on the vehicle body and having a low floor portion at the rear,
The connecting member that fixes the vehicle body and the low floor portion includes a rush prevention device ,
A lorry in which the vehicle body and the cargo box are detachably fixed via the connecting member .

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