KR19980043492U - Rigid reinforcement structure of bus frame - Google Patents

Abstract

The present invention relates to a rigid reinforcing structure of the bus frame, and side members 11 which are arranged at regular intervals on both sides, several cross levers which are welded and fixed at predetermined intervals to the side members 11, and A rigger 12 having an I-shaped cross section welded and fixed to the side member 11 at right angles, a reinforcement member 13 having an H cross-sectional shape connected to and fixed to the side member 11 and the rigger 12, By including a reinforcement plate 14 welded and fixed to the connection portion of the side member 11 and the rigger 12 by cracking (shimmy), shaking (shaking), body (body) cracks and It is to prevent the phenomenon that the trim (trim) is shifted.

Description

Rigid reinforcement structure of bus frame

1 is a plan view showing an example of a general bus frame.

Figure 2 is an enlarged partial cutaway showing the rigid reinforcement structure of the bus frame according to the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B in FIG.

* Description of the symbols for the main parts of the drawings *

11,11 ': Side Member 2: Cross Member

3, 12: trigger 4, 14: reinforcement plate

13: Reinforcement member

The present invention relates to a rigid reinforcing structure of the bus frame, and more particularly to a rigid reinforcing structure of the bus frame to enhance the quietness of the vehicle by reinforcing the force against the torsional and bending forces.

In general, various types are known in the frame of a vehicle according to the type, use, driving method, mounting position of the engine or suspension, etc. The vehicle frame is classified into a general frame, a special frame, and a frame integrated structure (monocoque type; monocoque type).

FIG. 1 shows an example of a monocoque frame applied to a bus or a large vehicle, for example, the model name AERO CITY-540, and has several cross members at predetermined intervals on both side members 1 and 1 '. 2 and the O / RIGGER 3 are fixed by welding, and the reinforcement plate 4 is welded and fixed to the connection portions of the side members 1, 1 'and the cross member 2. have.

However, the bus frame of the structure described above has a weak force against torsional and bending forces, so that cracks and trims due to shimmy, shaking, and body vibration are displaced. There were a number of problems.

It is an object of the present invention to provide a rigid reinforcement structure of a bus frame that can enhance quietness when driving a vehicle by reinforcing a force against torsional and bending forces.

In order to achieve the above object of the present invention, it is configured by welding fixed to the side member on both sides of the I-shaped cross-sectional shape in the perpendicular direction, and weld-fixed reinforcing member of the H-shaped cross-section to the side member and the rigger. A rigid reinforcement structure of a bus frame is provided.

Hereinafter, the rigid reinforcement structure of the bus frame according to the present invention will be described according to the embodiment shown in the accompanying drawings.

2 is a partially cut-away enlarged view showing the rigid reinforcing structure of the bus frame according to the present invention, FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line B-B of FIG.

As shown in the drawing, the rigid reinforcement structure of the bus frame according to the present invention includes a side member 11 disposed at both sides at regular intervals and a plurality of welding members fixed to the side member 11 at predetermined intervals. A cross lever (not shown), an I-shaped cross-section rigger 12 welded and fixed to the side member 11 at right angles, and an H-shape connected and fixed to the side member 11 and the rigger 12. It comprises the reinforcement member 13 of cross-sectional shape, and the reinforcement board 14 welded and fixed to the connection part of the said side member 11 and the rib 12.

Rigidity reinforcement structure of the bus frame according to the present invention is configured as described above, the I-shaped cross-section rigger 12 is welded and fixed to the side member 11 on both sides in a right angle, and the side member 11 and Since the reinforcement member 13 having the H-shaped cross-section is fixed to the rib 12, the force against the torsional and bending forces is reinforced, and thus shimmy, shaking, and body vibrations are performed. It is to prevent the phenomenon that the cracks (crack) and trim (trim) according to the more to improve the quietness of the vehicle.

In addition, since the reinforcing plate 14 is welded and fixed to the connection portion between the side member 12 and the rigger 12, the reinforcement is weakened by the concentration of thermal stress.

As described above, the rigid reinforcement structure of the bus frame according to the present invention welds and fixes an I-shaped cross-section rigger in a direction perpendicular to the side members on both sides, and reinforces the H-shaped cross-section reinforcement to the side member and the rigger. Welding to prevent cracks and trims caused by shimmy, shaking, and body vibration by reinforcing forces against torsional and bending forces, Therefore, there is an effect of further improving the quietness of the vehicle.

Claims (1)

A rigid reinforcing structure for a bus frame, comprising: fixing an I-shaped cross-section rigger in a perpendicular direction to side members on both sides, and welding and fixing an H-shaped cross-sectional reinforcement member to the side member and the rigger.