JPH0642545U - Front structure of cab-over vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To effectively prevent concave deformation of the front of the cab at the time of a rear-end collision without increasing the space at the front of the vehicle. [Structure] A lean bracket 5 is provided along a support bracket 2 provided on a lower surface of a front edge of a cab floor 1 of a cab-over vehicle, and a locking piece 51 is extended from a lower end of the lean bracket 5 to the front lower side. The stop piece 51 is engaged with the locking projection 41 provided on the vehicle frame 4. Even if a large load is applied to the support bracket 2 toward the rear of the vehicle at the time of a rear-end collision, the support bracket 2 is reinforced by the lean hosement panel 5, so that the support bracket 2 has sufficient strength and the locking piece 51 has the vehicle frame. Since it is engaged with the locking projection 41 of No. 4, the load applied to the connecting bolt 6 is dispersed and its deformation is prevented. The rearward deformation of the front portion of the cab at the time of a rear-end collision is prevented without increasing the size of the support bracket 2 and the connecting bolt 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a front structure of a cab-over vehicle, and more particularly to an improvement of a front structure that effectively prevents deformation of a front panel inside a vehicle in a rear-end collision.

[0002]

[Prior art]

 FIG. 6 shows an example of the front structure of a cab-over vehicle. The left and right side frames 71 and 72 extending in the front-rear direction below the cab C are connected at their front ends by a front frame 4 to form a front edge of the cab floor 1. Support brackets 2 provided at two places on the left and right sides of the front frame 4 are connected to the front frame 4.

The support bracket 2 is U-shaped as shown in FIG. 7, and is connected to the front frame 4 by a connecting bolt 6 penetrating the bottom surface thereof. This will be described in detail with reference to FIG. 8. It is elastically supported by a pair of anti-vibration rubber bodies 31, 32 which are arranged around the connecting bolt 6 and clamp the upper side of the frame 4 from above and below.

[0004]

[Problems to be solved by the device]

 In such a front structure, when the vehicle bumps into the rear bumper M (FIG. 8) of the front vehicle, a large rearward load is applied to the support bracket 2. In order to prevent a large depression deformation of the front part of the cab due to this load and to exert sufficient durability, it is necessary to make the connecting bolt 6 thick enough and make the support bracket 2 large in size. It is a disadvantage.

The present invention solves such a problem by providing a front structure of a cab-over vehicle that effectively prevents the cab from deforming concavely at the time of a rear-end collision without increasing the space at the front of the vehicle. The purpose is to provide.

[0006]

Means for Solving the Problems To explain the structure of the present invention, a supporting bracket 2 is provided on a lower surface of a front edge of a cab floor 1 of a cab-over vehicle, and the supporting bracket 2 is provided with vibration-proof rubber bodies 31 and 32. In the vehicle front structure fixed on the vehicle frame 4 by the connecting bolts 6, the support bracket 2 is provided with a lean hosement panel 5 along the support bracket 2 and the locking piece 51 is extended forward and downward from the lower end thereof. The locking piece 51 is engaged with the locking projection 41 provided on the vehicle frame 4.

[0007]

[Action]

 In the above structure, even if a large load is applied to the support bracket 2 toward the rear of the vehicle in the event of a rear-end collision, the support bracket 2 is reinforced by the lean hosement panel 5, so that the support bracket 2 has sufficient strength and the lean hosement. Since the locking piece 51 extending from the panel 5 is engaged with the locking projection 41 of the vehicle frame 4, the load applied to the connecting bolt 6 is dispersed and its deformation is prevented.

Therefore, rearward deformation of the front portion of the cab at the time of a rear-end collision is prevented without increasing the size of the support bracket 2 and the connecting bolt 6.

[0009]

Embodiment 1 In FIGS. 1 and 2, a substantially U-shaped support bracket 2 is provided on a lower surface of a front edge of a cab floor panel 1 so as to project downward, and an inner peripheral surface of the support bracket 2 is provided with the support bracket 2. A lean hose panel 5 bent along a U shape is bolted at a plurality of points. Anti-vibration rubber bodies 31 and 32 are provided around the connecting bolt 6 that penetrates the center of the bottom surface of the lean hosement panel 5 and the support bracket 2 by sandwiching the upper side of the front frame 4 from above and below. The support bracket 2 is elastically supported on the front frame 4 by the anti-vibration rubber bodies 31 and 32.

A base end is welded and fixed on the bottom surface of the lean hosement panel 5, and a locking piece 51 formed by bending a rod body into a U shape is provided. On the other hand, a front surface of the front frame 4 is hook-shaped. The locking projection 41 is fixed, and the tip of the locking piece 51 bent forward and downward is engaged with the locking projection 41.

In such a structure, when the rear bumper M (FIG. 2) of the preceding vehicle collides, a large load is applied to the support bracket 2 toward the rear of the vehicle (right side of the figure). Here, since the support bracket 2 is reinforced by the lean hosement panel 5, the support bracket 2 has sufficient strength, and since the locking piece 51 extending from the support bracket 2 is engaged with the locking projection 41 of the front frame 4, the applied load is not applied. The connection bolts 6 will not be dispersed and will not be deformed.

[0012]

Second Embodiment Instead of fixing the lean hose panel 5 to the support bracket 2 by bolts, as shown in FIG. 3, a plurality of points may be fixed by spot welding (marked by X in the figure).

[0013]

Third Embodiment In FIGS. 4 and 5, the locking projection 42 of the front frame 4 has a columnar shape, while the locking piece 52 bends and extends the bottom front edge of the lean hosement panel 5 downward in a long plate shape. The locking hole 521 provided at the tip of the locking projection 521 is fitted and engaged with the locking projection 42.

With such a structure, the same effect as that of each of the above embodiments can be obtained.

[0015]

[Effect of device]

 As described above, according to the front structure of the present invention, since it is not necessary to increase the size of the support bracket or the connecting bolt, the deformation of the front part of the vehicle at the time of a rear-end collision can be effectively prevented without increasing the installation space. can do.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view of a support bracket portion according to a first embodiment of the present invention and is a view corresponding to FIG. 7 showing a conventional example.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged perspective view of a support bracket portion according to a second embodiment of the present invention.

FIG. 4 is an enlarged perspective view of a support bracket portion according to a third embodiment of the present invention.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is a perspective view of the lower front half of the cab of a cab-over vehicle.

7 is an enlarged perspective view of a support bracket portion showing a conventional example, and is an enlarged view of portion A of FIG.

8 is a cross-sectional view taken along the line VIII-VIII of FIG.

[Explanation of symbols]

 1 Cab Floor 2 Support Brackets 31 and 32 Anti-Vibration Rubber Body 4 Vehicle Frame 41 and 42 Locking Protrusions 5 Lean Horsement Panels 51 and 52 Locking Pieces 6 Connecting Bolts

Claims (1)

[Scope of utility model registration request] 1. A front structure in which a support bracket is provided on a lower surface of a front edge of a cab floor of a cab-over vehicle, and the support bracket is fixed on a vehicle frame by a connecting bolt through a vibration-proof rubber body, wherein the support bracket is attached to the support bracket. The cabover is characterized in that a lean hose panel is provided along this, a locking piece is extended forward and downward from the lower end thereof, and the locking piece is engaged with a locking projection provided on the vehicle frame. Car front structure.