JP3207756B2 - Cab front body structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cab front body structure with improved cab mountability.

[0002]

2. Description of the Related Art As shown in FIG. 4, a front body structure of a cab at a portion C shown in FIG. 3 is composed of an apron panel 1 in which an upright flange portion 2 facing a chassis frame (not shown) and a tire house are formed. It is attached inside the front fender (not shown). Further, a bead 3 bent in a hook shape protrudes from a lower end edge of the flange portion 2.

[0003]

As shown in FIG. 5, the position of the flange 2 is determined by the tire envelope 10, but when the position of the flange 2 is close to the chassis frame 6, the cab is mounted. In this case, the space G1 is insufficient, so that the auxiliary equipment 4 disposed on the side of the engine 5 comes into contact with the auxiliary equipment 4, thereby deteriorating the cab mountability. When the cab mounting space is insufficient, as shown in FIG. 6, a split flange 12 is formed, and after the cab is mounted, the split flange 12 is tightened with bolts 13 and weld nuts 14. Therefore,
This was accompanied by increased costs due to parts costs and assembly man-hours.

An object of the present invention is to provide a front body structure of a cab which enables cab mounting to be improved at a low cost in a limited space between the cab body and a chassis frame.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an apron which is formed inside a front fender, wherein a flange portion of an upright surface facing a chassis frame and a tire house are formed. In the panel, a convex bead having the flange portion formed so as to be retracted toward the front fender side so as to form a large gap with respect to the chassis frame, and a lower end edge of the flange portion having an inclined surface facing the outside of the vehicle body formed on a lower side. It is characterized by having been protruded.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes an apron panel formed with a flange portion 2 on an upright surface facing a chassis frame 6 and a tire house, and attached to the inside of a front fender.

According to the present invention, in the apron panel 1 described above, the flange portion 2 is formed at a retracted position on the front fender side so as to form a large gap G2 with respect to the chassis frame 6 in consideration of the tire envelope 10. As shown in FIG. 2, a convex bead 7 having an inclined surface 11 in the outer side of the vehicle body formed on the lower side protrudes from a lower end edge of the flange portion 2.

Since the present invention has a structure as described above, as shown in FIG. 1, a gap G2 between the flange portion 2 and the chassis frame 6 which is a cab mounting space can be obtained larger than the space G1 in the conventional structure. A large gap G3 is obtained between the convex bead 7 and the auxiliary device 4 arranged on the side of the engine 5.

Accordingly, the space between the cab body and the chassis frame 6 is sufficiently enlarged, and the cab mounting property is improved.

Further, the convex bead 7 protruding from the lower end edge of the flange portion 2 has a cross-sectional shape in which an inclined surface 11 is formed on the lower side in the outer direction of the vehicle body, so that the rigidity of the flange portion 2 is improved.

Further, even if the inclined surface 11 of the convex bead 7 comes into contact with the auxiliary machine 4 when the cab is mounted, the cab is separated from the auxiliary machine 4 by the inclination angle of the inclined surface 11 toward the outside of the vehicle body. The cab is forcibly guided and slid down to mount the cab smoothly.

[0012]

As described above, according to the present invention, the apron panel attached to the inside of the front fender has a large flange formed on the apron panel facing the chassis frame with a large gap from the chassis frame. The rear bead is formed on the front fender side so as to form a convex bead in which the lower end edge of the flange portion is formed with a convex bead having an inclined surface facing the outside of the vehicle body formed on the lower side, so that the cross-sectional shape of the convex bead In addition to improving the rigidity of the flange part, the space between the cab body and the chassis frame is sufficiently expanded, improving the cab mounting without increasing the cost, and if the slope of the convex bead contacts the auxiliary machine, However, the cab is forcibly guided in a direction away from the auxiliary machine by the inclination angle of the inclined surface in the outward direction of the vehicle body, and slides down to drop the cab. There is an advantage to be mounted on the smooth.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a structure of the present invention.

FIG. 2 is an enlarged view of a portion B in FIG. 1;

FIG. 3 is a perspective view showing a front body of the cab.

FIG. 4 is a perspective view showing a conventional front body structure.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a cross-sectional view of an apron panel showing a conventional cab mounting measure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apron panel 2 Flange part 4 Auxiliary equipment 5 Engine 6 Chassis frame 7 Convex bead 11 Slope

Claims (1)

(57) [Claims] 1. An apron panel formed with a flange portion on an upright surface facing a chassis frame and a tire house and mounted inside a front fender, the flange portion forming a large gap with respect to the chassis frame. A front body structure of a cab, wherein a convex bead is formed on a front fender side at a retreat position, and a lower end edge of the flange portion is provided with a convex bead having an inclined surface facing the outside of the vehicle body formed on a lower side.