JP2000203460A - Car body structure of truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relieve contraction of a space at the periphery of a seat due to an impact load. SOLUTION: This truck comprises a pair of side members 12 arranged extending in an advancing direction; and a pair of front members 16 arranged extending in the advancing direction of the tuck at a lower face of a cab. The floor member 16 consists of an approximately front horizontal part 16a, a rise part 16b, and a rear horizontal part. A tip is arranged at a side member 12 or a front horizontal part 16a, or a swollen member 31 making contact with the front horizontal part 16a and a rise part 16b is arranged at the front horizontal part 16a in the vicinity of the rise part 16b or the side member 12. When the swollen member 31 spans between the side member 12, a first oblong hole extending in the advancing direction of a truck is formed in one or both of the front horizontal part 16a and the rise part 16b, and an engaging member inserted in the first slotted hole and engaged with the front end of the first slotted hole is arranged at the tip of the expansion member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab-over type truck body structure.

[0002]

2. Description of the Related Art Conventionally, a cab-over type track has a pair of side members extending in a track traveling direction, a cab provided above a front portion of the pair of side members, and a cab over a lower surface of the cab. And a pair of floor members extending in the direction. In this type of truck, the engine is mounted between the side members below the cab, and the floor member disposed above the engine is bent and formed according to the shape of the engine in order to increase the internal space of the cab. Is done. Specifically, the floor member includes a substantially horizontal front horizontal portion, a rising portion connected to the rear end of the front horizontal portion and rising rearward and inclined, and a substantially horizontal portion connected to the rear end of the rising portion. And a substantially horizontal rear portion. A truck having such a floor member is configured such that the internal space of the cab is widened and this space can be effectively used.

[0003]

However, in a truck having a bent floor member, when a shock load is applied to the cab from the front, a bent portion, specifically, a front horizontal portion and a rising portion are formed. In some cases, stress was concentrated on the connection portion, and the front horizontal portion and the rising portion were bent in a V-shape. In particular, if the front end of the front horizontal part is lifted by the impact load and the rear end of the front horizontal part moves downward, and the front horizontal part and the rising part are deformed in a V shape, it is provided on the front horizontal part The space around the seat, ie, the space for the occupant, is reduced.
In addition, under the impact load caused by a truck collision, the entire cab bends while moving backward relative to the chassis frame, thereby absorbing the impact energy acting on the cab and reducing the amount of bending. It is desired to do. SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle body structure of a truck which can reduce a space reduction around a seat due to an impact load applied to a front surface of a cab. Another object of the present invention is to provide a vehicle body structure of a truck capable of absorbing impact energy acting on the front surface of the cab.

[0004]

The invention according to claim 1 is
As shown in FIGS. 1 and 3, a pair of side members 12 extending in the traveling direction of the track 10, a cab 13 provided above the front portions of the pair of side members 12,
A truck body having a pair of floor members 16 provided on a lower surface of a cab 13 in a traveling direction of the truck 10, wherein the floor member 16 is substantially horizontal and a front horizontal portion 16 a is formed. A rising portion 16b connected to the rear end and rising rearward and inclined, and a substantially horizontal rear horizontal portion 1 connected to the rear end of the rising portion 16b.
6c. The characteristic configuration is such that a bulging member 31 whose tip is close to the side member 12 (or both the front horizontal portion 16a or both the front horizontal portion 16a and the rising portion 16b) is provided on the front horizontal portion 16a (or the side member 12). There.

In the truck body structure according to the first aspect, when an impact load acts on the front surface of the cab 13, the floor member 16 and the cab 13 are moved together with the lower bracket 1.
7 and the cab 1
A force for compressing the cab 13 in the front-rear direction is applied to 3 itself. The swelling member 31 provided on the front horizontal portion 16a (or the side member 12) has a tip 31b.
Abuts against the side member 12 (or the front horizontal portion 16a or both the front horizontal portion 16a and the rising portion 16b), and the rear end of the front horizontal portion 16a is lowered by a force to compress the cab 13 in the front-rear direction. This prevents the front horizontal portion 16a and the rising portion from sinking and bending in a V-shape. As a result, the space around the unillustrated sheet provided on the front horizontal portion 16a is prevented from being reduced.

The invention according to claim 2 is the invention according to claim 1, wherein the bulging member 31 is provided on the pair of side members 12, as shown in FIG.
A first elongated hole 33 extending in the traveling direction of the track 10 is formed in (or one or both of the rising portions 16 b), and an end portion 31 b of the bulging member 31 has an insertion portion 34 b into the first elongated hole 33. This is a vehicle body structure of a truck provided with a joining member 34. In the truck body structure according to the second aspect, the tip of the bulging member 31 provided on the side member 12 abuts against the front horizontal portion 16a from below, and the V-shape of the front horizontal portion 16a and the rising portion is formed. To prevent bending. At the same time, the backward movement of the cab 13 causes the insertion portion 34b to abut on the front end of the first elongated hole 33,
The load applied to the floor member 16 can be shared by the side members 12 via the insertion portions 34b, and the impact energy can be absorbed. In addition, when a protruding portion 34a is formed at the front end of the insertion portion 34b toward the front of the vehicle, the protruding portion 34a is engaged with the front end of the first elongated hole 33, so that the upward deformation of the floor member 16 can be restricted.

According to a third aspect of the present invention, there is provided the second aspect of the invention, as shown in FIGS. 7 and 8, a second elongated hole 36 extending in the traveling direction of the track 10 is formed in the side member 12. The bulging member 31 has a vehicle body structure of a truck erected on the side member 12 by inserting the bolt 32 into the front end of the second elongated hole 36 and screwing it with the nut 37. In the vehicle body structure of the truck according to the third aspect, the first
When a force for moving the cab 13 rearward is applied in a state where the engaging member 34 is in contact with the front end of the long hole 33, the swelling member 31 itself and the floor member 16 together with the second long hole 3
Move backward along 6. As a result, the front horizontal portion 16a can be moved rearward while being kept substantially horizontal.

According to a fourth aspect of the present invention, as shown in FIG. 15, a pair of side members 12 extending in the track traveling direction and a cab provided above the front portions of the pair of side members 12 are provided. A truck body comprising a pair of floor members 16 provided on the lower surface of the cab in the traveling direction of the truck 10, wherein the floor members 16 are substantially horizontal and a front horizontal portion 16a and a front horizontal portion 16a.
This is an improvement of the vehicle body structure of a truck having a rising portion 16b which is connected to the rear end and rises inclining rearward and a substantially horizontal rear horizontal portion which is connected to the rear end of the rising portion 16b. The characteristic configuration is such that the first and second bulging members 51, which have tips H close to each other and overlap in the vertical direction, have a margin H.
52 are provided on the front horizontal portion 16a and the side member 12, respectively. In the truck body structure according to the fourth aspect, when an impact load acts to apply a force for compressing the cab 13. The front ends of the first and second swelling members 51 and 52 abut each other to prevent the rear end of the front horizontal portion 16a from sinking downward and to support it upward. As a result, it is possible to reliably prevent the front horizontal portion 16a and the rising portion 16b from bending in a V-shape.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 2 and 3,
The chassis frame 11 of the cab-over type truck 10 includes a pair of side members 12 extending in the traveling direction of the truck 10, and a cab 13 is provided above a front portion of the side members 12. On the lower surface of the floor panel 14 of the cab 13, a pair of channel-like or square-tube-like floor members 16, 16 are provided, each extending in the traveling direction of the truck 10 and facing the pair of side members 12, 12, respectively. As shown in FIG.
A lower bracket 17 is attached to the upper surface near the front end of the second member so as to face the floor member 16, and an upper bracket 19 is attached to the lower surface near the front end of the floor member 16. Also, the upper bracket 19 and the lower bracket 17
Are connected by a connecting pin 23, and the front end of the cab 13 is rotatably held by the connecting pin 23.

The cab 13 of the pair of side members 12
A rear suspension portion 27 that suspends the rear portion of the cab 13 is provided at a portion facing the rear end of the cab 13. The rear suspension portion 27 includes a rear arch 27a provided between a pair of side members 12 of the chassis frame 11, and a pair of floor members 1 positioned above the rear arch 27a.
6, a floating arch 27b erected at the rear end;
Air spring 27c interposed between both arches 27a, 27b
And The cab 13 is tilted about the connecting pin 23, and the rear suspension portion 27 is tilted.
The structure is such that the impact of the lowering of the cab 13 can be reduced and the rear part of the cab 13 can be fixed.

As shown in FIGS. 2 and 3, the pair of floor members 16 and 16 are formed by bending an inverted hat-shaped section steel or the like having a pair of flanges along the lower surface of the floor panel 14 into a substantially crank shape. Formed by the floor panel 1
Along the lower surface of the front horizontal portions 4, front horizontal portions 16a, and rising portions 16b, 16b which are respectively connected to the rear ends of the front horizontal portions 16a, 16a and which rise rearwardly and inclined.
And substantially horizontal rear horizontal portions 16c, 16c connected to the rear ends of the rising portions 16b, 16b, respectively. Further, by welding a pair of flanges of the floor members 16, 16 to the lower surface of the floor panel 14, a closed cross section is formed by the front horizontal portions 16a, 16a, the rising portions 16b, 16b, and the rear horizontal portions 16c, 16c. . In this embodiment, a truck is used as the vehicle. However, a vehicle having a pair of floor members 16 and 16 provided along the lower surface of the floor panel and bent in a crank shape may be a one-box type vehicle or another vehicle. It may be a vehicle.

The feature of the present invention is that the side member 1
2, 12 or front horizontal portions 16a, 16a or front horizontal portions 16a, 16a and rising portions 16b, 16
The swelling member 31 whose tip 31b is close to b is provided on the front horizontal portions 16a, 16a or the side members 12, 12. As shown in FIG. 2, the swelling member 31 in this embodiment has
2,12, and the side members 12,
In order to avoid abutment with an engine (not shown) provided between the cylinders 12, the steel is formed by bending an inverted hat-shaped section steel or the like into a substantially hat shape. The bulging member 31 produced in this manner is erected on the front horizontal portions 16a, 16a. As shown in FIG. 1, the swelling member 31 has flange portions 31 a, 31 a on both sides attached to the front horizontal portion 16 a by bolts 32, 32.

The operation of the thus constructed truck body structure will be described. When the truck 10 collides with the rear end of the bed of another truck (not shown) and an impact load is applied to the front surface of the cab 13 of the truck 10, the cab 13 moves relatively rearward with respect to the side members 12 and A force is applied to the cab 13 itself to compress the cab 13 in the front-rear direction. Due to the force, a compressive force is applied to the floor member 16 in the longitudinal direction, and the compressive force causes the bent portion of the floor member 16, that is, a connection portion between the front horizontal portion and the rising portion and a connection between the rising portion and the rear horizontal portion. Stress concentrates on the part. However, since the front end 31b of the swelling member 31 erected on the floor member 16 contacts the side member 12, the rear end of the front horizontal portion 16a sinks downward, and the front horizontal portion 16a and the rising portion form a V-shape. Prevent bending. As a result, the space around the unillustrated sheet provided on the front horizontal portion 16a is prevented from being reduced.

In the first embodiment, the swelling member 31 is connected to the front horizontal portion 16a of the floor member 16,
16a, but as shown in FIG.
The bulging member 31 may be provided on the side member 12 by bolting 1a, 31a to the side member 12 using bolts 32, 32. When the swelling member 31 is provided on the side member 12, the front end 31b of the swelling member 31 provided on the side member 12 abuts on the front horizontal portion 16a of the floor member 16 from below, and the rear end of the front horizontal portion 16a Prevents the front horizontal portion 16a and the rising portion from being bent in a V-shape due to sinking downward.

In the above-described first embodiment, the bulging member 31 formed by bending a cross section inverted hat-shaped section steel or the like into a substantially hat shape is used as the front horizontal portions 16a, 16a.
However, the swelling members may be separately provided on the front horizontal portion or the side members without being provided.
However, a general floor member 16 has an inclined portion 16d which is connected so as to reduce the interval between the front portions and increase the interval between the rear portions.
Due to having (FIG. 2), it is necessary to provide the floor member and the side member in a vertically overlapping portion, and the setting place of the swelling member is restricted, but as shown in FIG. If the wide portion 16e is provided integrally or separately, the degree of freedom of the setting place is increased, and the wide portion 16e is brought into contact with the front horizontal portion 16a near the rising portion 16b, so that the rear portion of the front horizontal portion 16a is more effectively provided. The V-shaped bending of the front horizontal portion 16a and the rising portion 16b due to the lowering of the ends can be prevented.

Further, in the first embodiment described above, the swelling member 31 whose tip is in contact with the side members 12 is described. However, when the swelling member 31 is provided on the side member 12, FIG. As shown in FIG.
b may be formed so as to approach both the front horizontal portion 16a and the rising portion 16b. If the bulging member 31 is formed so that the front end 31b approaches both the front horizontal portion 16a and the rising portion 16b, the V-shaped bending of the front horizontal portion 16a and the rising portion is prevented, and the bulging member 31 is formed. The portion of the cab 13 that contacts the rising portion 16b opposes the force of the cab 13 to move rearward with respect to the side member 12, and the amount of rearward movement can be suppressed.

FIGS. 7 to 11 show a second embodiment of the present invention. In the drawings, the same reference numerals as those in the above-described embodiment indicate the same parts. As shown in FIG. 11, the swelling member 31 according to the present embodiment has a
6 and 16 and the side members 12 and
In order to avoid abutment with an engine (not shown) provided between the cylinders 12, the steel is formed by bending an inverted hat-shaped section steel or the like into a substantially hat shape. The swelling member 31 produced in this manner is installed on the side members 12 and 12. As shown in FIG. 7, when the swelling member 31 is attached to the side member 12, the flange portions 31 a, 31 a are bolted to the bolts 32, 3.
The swelling member 31 is erected on the side member 12 by bolting it to the side member 12 using 2.
Front horizontal portion 1 close to tip 31b of swelling member 31
6a, a first elongated hole 33 extending in the traveling direction of the track 10 is provided.
Is formed. The first elongated hole 3 is provided at the tip of the swelling member 31.
3 is provided with an engagement member 34 having an insertion portion 34b. In this embodiment, the engaging member 34 is
It is made by cutting and raising the tip of 1 by sheet metal processing,
It has a height that can be inserted into the first elongated hole 33.

In the thus constructed truck body structure, the tip 31b of the swelling member 31 provided on the side member 12 abuts against the front horizontal portion 16a from below,
The V-shaped bending of the front horizontal portion 16a and the rising portion is prevented. At the same time, the cab 13 of the truck 10
The rearward movement of the cab 13 with respect to the side member 12 when an impact load is applied to the front surface causes the insertion portion 34b to abut on the front end of the first elongated hole 33, thereby inserting the load applied to the floor member 16 as shown in FIG. The impact energy can be absorbed by the side member 12 being shared via the portion 34b. When the engaging member 34 is formed with a protruding portion 34a protruding forward, when the floor member 16 moves rearward while being inserted into the first elongated hole 33, as shown in FIG. The front end of the hole 33 penetrates between the protruding portion 34a and the front end 31b of the swelling member 31, and the engaging member 34 engages with the front end of the first long hole 33 to prevent the floor member 16 from being deformed upward. it can.

On the other hand, the track 10 is
A second elongated hole 36 extending in the traveling direction is formed. The second elongated hole 36 is formed for inserting the bolts 32, 32, and the swelling member 31 is provided at the front end of the second elongated hole with the bolts 32, 32.
32 is inserted and screwed together with a nut 37 to bridge the side member 12. As shown in FIGS. 7 and 8,
The second elongated holes 36 in this embodiment are provided with bolts 32, 3
The front end for inserting 2 has a diameter slightly larger than the bolt diameter.

In this case, if there is a force for further moving the cab 13 backward with the insertion portion 34b abutting on the front end of the first elongated hole 33, the swelling member 31 itself will It moves backward with the member 16. The movement of the bulging member 31 is performed by the bolts 32, 32 moving inside the second elongated holes 36, so that the rearward movement of the cab 13 can be stabilized. As shown in FIG.
If the width of the portion other than the front end of the second long hole 36 is made smaller than the bolt diameter, the bolts 32, 32 move rearward while pushing and expanding the second long hole 36. That is, the force for pushing the second long hole 36 by the bolts 32, 32 is applied from the front end to the rear end of the second long hole 36, and exerts a certain resistance against the backward movement of the cab. As a result, the impact energy generated by the impact load acting on the front surface of the cab 13 is transferred to the bolt 3
Due to the drag of the second elongated hole 36 to be spread by the second and second holes 32, the absorption can be efficiently performed. In addition, the impact energy is
If all the force can be absorbed by the drag of the second elongated hole 36 to be spread, the amount of bending of the floor member 16 can be further reduced.

In the above-described second embodiment, the first elongated hole 33 is formed only in the front horizontal portion 14a.
As shown in FIG. 6, if the tip of the bulging member 31 is close to both the front horizontal portion 16a and the rising portion 16b, the first elongated hole 33 may be formed in the rising portion 16b. However, the first elongated hole may be formed in both the front horizontal portion 16a and the rising portion 16b. Also,
The bulging member 31 is not provided between the side members, but may be provided separately on the side members.

FIGS. 12 to 14 show a third embodiment of the present invention. In the drawings, the same reference numerals as those in the above-described embodiment indicate the same parts. In the third embodiment, as shown in FIGS. 12 and 13, the swelling member 31 is
And an engaging member is provided at the tip 31b of the swelling member 31. The engaging member in this embodiment is an engaging pin 41 having a large-diameter portion 41a at the tip. A first elongated hole 33 is formed in the front horizontal portion 14a near the tip 31b of the bulging member 31, and a large-diameter hole 33a into which the large-diameter portion 41a can be inserted is formed in the rear end of the first elongated hole 33. Is done.
In a state where the large diameter portion 41a passes through the large diameter hole 33a and the engagement pin 41 is inserted into the first long hole 33, when the floor member 16 moves rearward, the front end of the first long hole 33 becomes the large diameter portion 41a. The engagement pin 41 is configured to enter between the front end 31 b of the bulging member 31 and engage with the front end of the first elongated hole 33.

In the truck body structure having the above-described structure, when a force is applied to move the cab 13 rearward while the engaging pin 41 is engaged with the front end of the first elongated hole 33, the floor member is provided. 16 moves backward. In this case, if the width of the portion other than the rear end of the first elongated hole 33 is about the pin diameter of the engaging pin 41, when the engaging pin 41 moves through the first elongated hole 33 due to the deformation of the floor member 16. , First slot 33
The large diameter portion 41a of the engaging pin 41 is engaged with the engaging pin 41, and the upward deformation of the floor member 16 can be continuously restricted.
Also, the width of the portion other than the rear end of the first elongated hole 33 is
When the pin diameter is smaller than 1, the engaging pin 41 moves inside the first elongated hole 33 while pushing and expanding the first elongated hole 33. As shown in FIG. 14, the force of the engagement pin 41 moving while pushing and expanding the first elongated hole 33 is applied from the rear end to the front end of the first elongated hole 33, and exerts a certain resistance against the backward movement of the cab. . As a result, the impact energy generated by the impact load acting on the front surface of the cab 13 is
It is possible to efficiently absorb the reaction force of the first elongated hole 33 pushed and spread by the engaging pin 41 and further reduce the amount of bending of the floor member 16.

FIG. 15 shows a fourth embodiment of the present invention. In the drawings, the same reference numerals as those in the above-described embodiment indicate the same parts. In the fourth embodiment, as shown in FIG. 14, the first and second swelling members 51, 52 having tips close to each other and having an overlap H in the vertical direction are connected to the front horizontal portion 16 as shown in FIG.
a and the side member 12. Each of the first and second bulging members 51 and 52 has an inverted hat shape in cross section, and inclined surfaces 51a and 52a are formed at the respective ends of the first and second bulging members 51 and 52. The first and second bulging members 51 and 52 are separately attached to the front horizontal portion 16a and the side members 12 by bolts 32 so that the first and second bulging members 51a and 52a face each other diagonally forward and downward.

In the truck body structure thus constructed, when the truck 10 collides with the rear end of the bed of another truck (not shown) and an impact load acts on the front surface of the cab 13 of the truck 10, the cab 13 Is side member 1
2 moves backward relative to 2. With this movement, the respective inclined surfaces 51 of the first and second bulging members 51 and 52 are moved.
a and 52a are in contact with each other, and the rear end of the front horizontal portion 16a is guided by the inclined surfaces 51a and 52a when the cab 13 is moved rearward, so that the overlap margin H in the vertical direction is obtained.
Lifted upwards At the same time, a force is applied to the cab 13 to compress the cab 13 in the front-rear direction. However, the first and second bulging members 51, 52
Of the front horizontal portion 16a is lifted upward, so that the rear end of the front horizontal portion 16a sinks downward, and the front horizontal portion 16a and the rising portion 16b are formed in a V-shape. Bending can be reliably prevented.

[0026]

As described above, according to the present invention, the front horizontal portion or the side member is provided with the side member, the front horizontal portion, or the swelling member close to the front horizontal portion and the rising portion. Provided the first and second bulging members close to each other on the front horizontal portion and the side members, respectively, so that even if a force is applied to compress the cab by an impact load, the tip of the bulging member is The side members or the front horizontal portion, or the front horizontal portion and the rising portion, or the leading ends of the first and second bulging members abut each other to prevent the rear end of the front horizontal portion from sinking downward. . As a result, it is possible to reliably prevent the front horizontal portion and the rising portion from being bent in a V-shape, and to prevent the space around the seat (not shown) provided above the front horizontal portion from being reduced.

A bulging member is provided on the pair of side members, and a first elongated hole extending in the track traveling direction is formed in one or both of the front horizontal portion and the rising portion.
If an engagement member having an insertion portion that can be inserted into the first elongated hole is provided at the tip of the swelling member, the insertion portion abuts on the front end of the first elongated hole, so that the load of the floor member can be reduced via the insertion portion. The impact energy can be absorbed by transmitting to the members. Further, a second elongated hole extending in the track traveling direction is formed in the side member, and a bolt is inserted into the front end of the second elongated hole and screwed with a nut to provide a swelling member on the side member. Even if a force is applied to move the cab backward with the engaging member in contact with the front end of the one elongated hole, the swelling member itself moves backward along the second elongated hole together with the floor member. The front horizontal portion can be moved rearward while being kept substantially horizontal.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a portion A in FIG. 3 showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the relationship between the floor panel, floor members and side members.

FIG. 3 is a longitudinal sectional view of a cab of the truck.

FIG. 4 is a side view corresponding to FIG. 1 and showing another first embodiment;

FIG. 5 is an exploded perspective view corresponding to FIG. 2 in which a middle and wide portion is provided on a floor member.

FIG. 6 is a side view corresponding to FIG. 1 and showing still another first embodiment.

FIG. 7 is a side view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a side view corresponding to FIG. 7, showing a state in which an engagement member is engaged with a front end of the first elongated hole.

FIG. 10 is a side view corresponding to FIG. 8, showing a state in which the bolt has moved while pushing and expanding the second elongated hole.

FIG. 11 is an exploded perspective view corresponding to FIG. 2 showing the second embodiment.

FIG. 12 is a side view corresponding to FIG. 1 showing a third embodiment of the present invention.

FIG. 13 is a sectional view taken along line CC of FIG. 12;

FIG. 14 is a sectional view corresponding to FIG. 13 and showing a state in which the engagement pin has moved while pushing and expanding the first elongated hole.

FIG. 15 is a sectional view showing a fourth embodiment of the present invention and corresponding to FIG. 1;

[Explanation of symbols]

 Reference Signs List 10 track 12 side member 13 cab 16 floor member 16a front horizontal portion 16b rising portion 16c rear horizontal portion 31 bulging member 32 bolt 33 first long hole 33a large diameter hole 34 engaging member 36 second long hole 37 nut 41 engagement Pin 41a Large diameter portion 51 First bulging member 52 Second bulging member

Claims (4)

[Claims] A pair of side members (12) extending in the traveling direction of a truck (10) and a pair of side members (1).
A cab (13) provided above the front of the cab (2);
3) a truck body including a pair of floor members (16) provided on a lower surface of the truck (10) so as to extend in the traveling direction of the truck (10), wherein the floor member (16) has a substantially horizontal front horizontal portion. (16a)
And a rising portion (16b) which is connected to the rear end of the front horizontal portion (16a) and rises inclining rearward, and the rising portion (16b)
A truck body structure having a substantially horizontal rear horizontal portion (16c) continuously provided at the rear end of the truck, wherein a front end (31b) is provided at the side member (12) or the front horizontal portion (16a) or the front horizontal portion. A vehicle body structure for a truck, wherein a bulging member (31) proximate to both (16a) and the rising portion (16b) is provided on the front horizontal portion (16a) or the side member (12). 2. The swelling member (31) includes a pair of side members (12).
The front horizontal part (16a) or the rising part (16b)
A first elongated hole (33) extending in the traveling direction of the track (10) is formed in one or both of them, and a tip of the bulging member (31) is formed.
The truck body structure according to claim 1, wherein the engagement member (34, 41) having the insertion portion (34b, 41a) into the first elongated hole (33) is provided on the (31b). 3. The side member (12) is formed with a second elongated hole (36) extending in the traveling direction of the track (10), and a swelling member (31) is bolted to a front end of the second elongated hole (36). Insert (32) and nut
The truck body structure according to claim 2, wherein said side member (12) is provided on said side member (12) by being screwed in at (37). 4. A pair of side members (12) extending in the traveling direction of the truck (10) and a pair of side members (1).
A cab (13) provided above the front of the cab (2);
3) a truck body including a pair of floor members (16) provided on a lower surface of the truck (10) so as to extend in the traveling direction of the truck (10), wherein the floor member (16) has a substantially horizontal front horizontal portion. (16a)
And a rising portion (16b) which is connected to the rear end of the front horizontal portion (16a) and rises inclining rearward, and the rising portion (16b)
A truck body having a substantially horizontal rear horizontal portion (16c) continuously provided at the rear end of the truck, wherein the first and second bulging members have tips (H) that are close to each other in the vicinity of the top and bottom. (51, 52) is the front horizontal part (16
a) and a vehicle body structure of a truck provided on each of the side members (12).