JP2007131050A - Car body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car body structure capable of absorbing torsion at a front end part on the side of a baggage storage part even when the torsion is caused while a vehicle travels. <P>SOLUTION: This car body structure is furnished with a chassis frame 11, a cabin 17 furnished with an occupant seat 16 provided on a front part of this chassis frame 11, the baggage storage part 21 to store baggage, integrally connected to and provided in this cabin 17 and a plurality of mounting devices to fix this baggage storage part 21 on the chassis frame 11, and the first mounting device 22a on the front end part of the baggage storage part 21 is placed on the chassis frame 11 in a non-fixed state and characteristically forms a torsion absorbing space 47 to absorb the torsion of the baggage storage part 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle body structure such as a route van in which a cabin and a luggage storage unit are combined.

In the vehicle body structure of a vehicle that modifies a small truck such as a route van, the modified vehicle such as a cash transport vehicle is provided with a cabin with a passenger seat at the front of the ladder chassis frame and integrated with the cabin at the rear of the chassis frame. A luggage storage unit is provided. In order to load heavy loads on the luggage storage portion, the load storage portion is supported and fixed to the chassis frame by a plurality of mounting devices in order to support the load.
Further, in a cash transport vehicle, the cabin and the baggage storage unit communicate with each other inside, so that an occupant can go back and forth between the cabin and the baggage storage unit without going out of the vehicle (see, for example, Patent Document 1). .).
Further, the cash transport vehicle employs a mounting device (see, for example, Patent Document 2) that can withstand the load storage portion and the chassis frame even when a heavy load is loaded, and can absorb vibrations. The storage portion is supported and fixed to the chassis frame.
FIG. 4 is a side view of a conventional vehicle such as a route van, and FIG. 5 is a rear view. The chassis frame 11 is formed in a ladder shape from a pair of side members 12 extending in the front-rear direction of the vehicle and a plurality of cross members 13 installed between the side members 12. A front wheel 14 is suspended on the front side of the chassis frame 11, and a rear wheel 15 is suspended on the rear side.

  Furthermore, a cabin 17 having a passenger seat 16 is mounted on the front portion of the chassis frame 11. That is, the cabin 17 is supported and fixed to the chassis frame 11 by the cab front mount 18 and the cablier mount 19. A line 50 connecting the cab front mount 18 and the cab mount 19 is a cab roll center 20, and the cabin 17 is configured to roll around the cab roll center 20.

  A luggage storage portion 21 having a box structure for storing a luggage is mounted on the rear portion of the chassis frame 11 by a plurality of mounting devices 22. As the chassis frame 11 is twisted, the luggage storage unit 21 rolls around a roll center 23 via a plurality of mounting devices 22.

Further, a rear door 24 for loading / unloading the luggage is provided at the rear of the luggage storage section 21. Further, the side panel 25 and the roof panel 26 at the front portion of the luggage storage portion 21 are integrally coupled to the side panel 27 and the roof panel 28 at the rear portion of the cabin 17. The cabin 17 and the luggage storage unit 21 communicate with each other via a communication path (not shown).
JP 2000-255313 A Japanese Patent Publication No. 6-31006

However, the cash transport vehicle configured as shown in FIGS. 4 and 5 communicates between the cabin 17 and the baggage storage unit 21, and travels between the cabin 17 and the baggage storage unit 21 without an occupant getting out of the vehicle. In order to be able to do so, the rear wall of the cabin 17 is cut open and the opening edge thereof is connected to the luggage storage part 21. Accordingly, the cabin 17 side and the luggage storage portion 21 side are greatly different in rigidity. When the vehicle rolls while traveling as shown in FIG. 5, the cabin 17 rolls as indicated by a two-dot chain line, and the luggage storage portion 21 Rolling as indicated by the broken line tends to cause stress concentration at the connecting portion 29 between the cabin 17 side and the luggage storage portion 21 side. For this reason, it is necessary to make the structure of the coupling portion 29 that couples the cabin 17 side and the luggage storage portion 21 side withstand the stress caused by torsion, which increases the cost.
The present invention has been made paying attention to the above circumstances, and the object of the present invention is to be able to absorb the torsion at the front end portion on the luggage storage portion side even if the torsion occurs while the vehicle is running. An object of the present invention is to provide a vehicle body structure that can alleviate stress concentration at the joint between the side and the luggage storage portion.

  In order to achieve the above object, the present invention accommodates a chassis frame, a cabin having a passenger seat provided at a front portion of the chassis frame, and luggage provided integrally with the cabin. In the vehicle body structure including a luggage storage portion and a plurality of mounting devices for fixing the luggage storage portion to the chassis frame, the mounting device at the front end portion of the luggage storage portion is not fixed to the chassis frame. The vehicle body structure is characterized in that a torsion-absorbing space that absorbs torsion of the luggage storage portion is formed.

  According to the present invention, even if the chassis frame is twisted while the vehicle is running, the generated stress is small in the portion when the twisting amount is the same due to the unfixed state of the mounting device at the front end portion of the luggage storage portion. Therefore, the durability can be improved and the structure of the coupling portion between the cabin side and the luggage storage portion side can be simplified, and the cost can be reduced.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a first embodiment, FIG. 1 is a side view of a vehicle body structure such as a route van modified as a cash transport vehicle, FIG. 2 shows a first mounting device, and (a) is a side view. (B) is sectional drawing which follows the AA line, FIG. 3 shows the 2nd mounting apparatus, (a) is a side view, (b) is sectional drawing which follows a BB line.

  As shown in FIG. 1, the cabin 17 is supported and fixed to the chassis frame 11 by a cab front mount 18 and a cablier mount 19. Accordingly, the line connecting the cab front mount 18 and the cablier mount 19 is the cab roll center 20 as in the prior art, and the cabin 17 rolls around the cab roll center 20.

  A luggage storage portion 21 having a box structure for storing a luggage is mounted on the rear portion of the chassis frame 11 by a plurality of mounting devices, which will be described later, arranged separately in the front-rear direction of the vehicle. The mounting device is provided at the foremost part of the luggage storage unit 21 and includes a single first mounting device 22a illustrated in FIG. 2 and a plurality of second mounting units illustrated in FIG. Mounting device 22b.

  First, the first mounting device 22a shown in FIG. 2 and its periphery will be described. The left and right side edges of the floor panel 30 having the beads 30a constituting the luggage storage portion 21 are welded to the side panel 31 (only one is shown). Are combined. A reinforcing frame 32 orthogonal to the beads 30a is fixed to the lower surface of the floor panel 30, and a pair of L-shaped upper brackets 33a are welded to the reinforcing frame 32. A substantially hat-type lower bracket 33b is fixed to the lower portion of the upper bracket 33a, and the flange portions of the upper bracket 33a and the lower bracket 33b are fastened to each other. Further, a rubber mount 34 is vulcanized and bonded to the lower surface of the lower bracket 33b so as to protrude downward.

  On the other hand, a chassis bracket 35 is fixed to the side wall of the chassis frame 11 by bolts and nuts 36, and a rubber mount 34 is abutted and supported on a support surface 35 a on the upper surface of the chassis bracket 35. That is, the first mounting device 22 a is in a state where the luggage storage portion 21 is placed on the chassis frame 11 via the rubber mount 34 without fixing the luggage storage portion 21 to the chassis frame 11.

  Since the plurality of second mounting devices 22b shown in FIG. 3 have the same structure, one of them will be described. A bracket 37 is welded to the reinforcing frame 32 provided on the lower surface of the floor panel 30. Further, a mounting bolt 38 is fixed to the horizontal surface of the bracket 37 so as to protrude downward.

  On the other hand, a chassis bracket 39 is fixed to the side wall of the chassis frame 11 by bolts and nuts 40, and a pair of upper and lower rubber mounts 42 and 43 supported by a tray 41 are joined to the upper and lower surfaces of the horizontal surface 39a of the chassis bracket 39. It is provided in the state. The horizontal surface 39a of the chassis bracket 39, the tray 41 and the rubber mounts 42 and 43 are provided with through holes 44 penetrating in the vertical direction. A mount bolt 38 provided in the bracket 37 passes through the through hole 44, and a nut 45 is screwed into the mount bolt 38. Therefore, the second mounting device 22b is in a state where the luggage storage portion 21 is elastically fixed to the chassis frame 11 via the rubber mounts 42 and 43.

  The luggage storage portion 21 thus mounted on the chassis frame 11 is supported by the first mounting device 22 a whose front end is not fixed to the chassis frame 11, and the rear portion is fixed to the chassis frame 11. It is supported by a plurality of second mounting devices 22b. The luggage storage unit 21 rolls around a roll center 46 via a plurality of mounting devices 22 as the chassis frame 11 is twisted.

  When the first mounting device 22a at the front end of the luggage storage portion 21 mounted on the chassis frame 11 is not fixed to the chassis frame 11 and the luggage storage portion 21 is placed on the chassis frame 11, the foremost part A torsion absorbing space 47 in which the luggage storage portion 21 is not mounted on the chassis frame 11 is formed between the second mounting device 20b positioned at the rear and the rear end portion of the cabin 17.

Compared with the case where the front end portion of the luggage storage portion 21 is fixed to the chassis frame 11 as in the prior art, when the amount of torsion of the vehicle is the same, the generated stress can be reduced as much as the torsion absorbing space 47 is increased. Therefore, even if the luggage storage portion 21 rolls, the twist absorption space 47 can absorb the twist and reduce the stress applied to the coupling portion between the cabin 17 and the luggage storage portion 21 and improve the durability.
Assuming that the vehicle is a small truck, the distance between the rear end of the cabin 17 and the first mounting device 22a is about 207 mm, and the distance between the rear end of the cabin 17 and the second mounting device 22b is The distance between the twist absorbing spaces 47 is increased from 207 mm to around 778 mm.
The front end portion of the luggage storage portion 21 mounted on the chassis frame 11 is not fixed to the chassis frame 11, and the load storage portion 21 is placed on the chassis frame 11. Since it can support with the chassis frame 11 via the 1st mounting apparatus 22a, it can prevent that the front-end part of the luggage storage part 21 bends below, and can prevent the deterioration of riding comfort.
In addition, although the vehicle body structure such as a route van modified as a cash transport vehicle has been described, it can also be applied to a vehicle body structure such as a route van used for other purposes.
Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

The 1st Embodiment of this invention is shown, and the side view of vehicle body structures, such as a route van. The 1st mounting apparatus of the embodiment is shown, (a) is a side view, (b) is sectional drawing which follows the AA line. The 2nd mounting apparatus of the embodiment is shown, (a) is a side view, (b) is sectional drawing which follows a BB line. The side view of vehicle body structures, such as the conventional route van. The rear view of vehicle body structures, such as the conventional route van.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Chassis frame, 17 ... Cabin, 21 ... Luggage storage part, 22a ... 1st mounting apparatus, 22b ... 2nd mounting apparatus, 47 ... Torsion absorption space

Claims (2)

Chassis frame,
A cabin with a passenger seat provided at the front of the chassis frame;
A luggage storage unit for storing luggage provided integrally with the cabin;
In the vehicle body structure comprising a plurality of mounting devices for fixing the luggage storage portion to the chassis frame,
The vehicle body structure characterized in that the mounting device at the front end portion of the luggage storage portion is placed in a non-fixed state with respect to the chassis frame to form a torsion absorbing space for absorbing torsion of the luggage storage portion. 2. The mounting device provided in the torsional absorption space includes a rubber mount fixed to a lower portion of the luggage storage portion, and the rubber mount is abutted and supported by the chassis frame. Body structure described.

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