JP2603007Y2 - Reinforcement structure of vehicle body skeleton - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for a frame of a vehicle body.

[0002]

2. Description of the Related Art As one type of skeleton of a vehicle body, a plurality of pillars each having a U-shaped cross section extending in a vertical direction and a cross section extending in a horizontal direction and joined to each of the pillars and connecting between the pillars are provided. There is a skeleton of a vehicle body that includes a character-shaped one or a plurality of rails, forms a partial shape of a vehicle body, and has an outer plate fixed to the outside to form a part of the vehicle body.
In the skeleton of the body, the pillar is configured by an upper pillar portion and a lower pillar portion,
The rail is composed of a plurality of front and rear rail portions,
The tip of the other pillar is vertically fitted to and joined to the cross-shaped joint provided at the tip of one of the pillars, and the tip of each of the rails is It is fitted and joined to the connecting portion in the lateral direction. The skeleton is employed as a component of a body of a large vehicle such as a bus.

[0003]

By the way, in the cross-shaped connecting portion of the skeleton, two points in the vertical direction and the horizontal direction are used.
Rigidity that can sufficiently withstand the load in the direction is required. However, in the pillars that constitute the skeleton, the tip of the other pillar extends into the pillar in a state in which the tip of the other pillar vertically penetrates the joint provided at the tip of the pillar, and extends into the pillar. The rigidity in the vertical direction is improved due to the structure that separates both rails that fit in the horizontal direction, and the cross-sectional shape is easily deformed because the pillar part that penetrates the joint has a U-shaped cross section. Low lateral rigidity. Therefore, in the conventional skeleton, it is necessary to give due consideration to the material and the thickness of both the pillar portion and the rail portion, which are constituent members, which causes an increase in weight and cost. The purpose of the present invention is to address these issues.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a reinforcing structure for a frame of a vehicle body, and includes a plurality of pillars having a U-shaped cross section extending in a longitudinal direction and a plurality of pillars extending in a lateral direction and joined to the respective pillars. The vehicle body includes one or more rails having a U-shaped cross section connecting the pillars to form a partial shape of the vehicle body, and an outer plate is fixed to an outer side to form a part of the vehicle body. It is a skeleton, and the pillar is configured by an upper pillar portion and a lower pillar portion, and the rail is configured by a plurality of front and rear rail portions, and at a tip end of one of the pillar portions of the both pillar portions. The tip of the other pillar portion is fitted and joined to the provided cross-shaped connecting portion in the vertical direction, and the tip of each of the rail portions is fitted and joined to the connecting portion in the lateral direction. Vehicle body In the case, a cross-shaped reinforcing member corresponding to the connecting portion is provided in the connecting portion, and the reinforcing member is a cross-shaped flat plate having a quadrangular pyramid-shaped protrusion at the center corresponding to the connecting portion. -Shaped inner panel, a triangular cross-section and a planar shape corresponding to the coupling portion, and a central portion having a quadrangular pyramid shape corresponding to the projection of the inner panel is fixed at the inner panel and the outer peripheral edge portion. And an outer panel.

[0005]

In the reinforcing structure having such a configuration, since the reinforcing member employed has a triangular cross-section in both the longitudinally extending portion and the laterally extending portion, the connecting portion corresponding to the relevant portion is provided. Is suppressed, and the rigidity of the fitting portion of each pillar portion and each rail portion increases. In addition, in the reinforcing member, since the center portions of the outer panel and the inner panel are formed in the corresponding quadrangular pyramid-shaped projections, two types of quadrangular pyramid-shaped projections having different heights are formed at the joint. These two protrusions prevent the deformation of each other, and also increase the rigidity of all portions of the connecting portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a connecting portion between a pillar 11 and a rail 12 employing a reinforcing structure according to the present invention. 4
2 shows a reinforcing structure of the connecting portion. The connection is a skeleton 10 of the body of the bath shown schematically in FIG.
, And corresponds to an intersection (indicated by a black circle) where the pillar 11 and the rail 12 intersect in a cross shape, and a large number exist in the entire body.

The pillar 11 includes an upper pillar portion 11a and a lower pillar portion 11b, and the rail 12 includes a plurality of front and rear rail portions 12a and 12b. ing. The connecting portion 20 includes an inner panel 21 and an outer panel 22. The inner panel 21 is a cross-shaped flat plate, and the outer panel 22 is a U-shaped cross section. Are fixed by outward flange portions provided on their outer peripheral edges, and form a cylindrical portion in the up-down direction and the front-back direction. The vertically extending cylindrical portion 20a extending upward includes the upper pillar portion 11
The lower pillar portion 11b is fitted and fixed to the vertically extending tubular portion 20b extending downward, and the front and rear rail portions 12a, 12b are respectively attached to the laterally extending tubular portions 20c, 20d extending in the front and rear directions. Are fitted and fixed.

Thus, the vertical cylinder portions 20a, 20a,
A reinforcing member 30 is disposed in a cross-shaped space, which is an intersection between the cylindrical member 20b and the horizontal cylinder portions 20c and 20d. The reinforcing member 30 includes an inner panel 31 and an outer panel 32, as shown in FIGS. The inner panel 31 has a cross-shaped flat plate shape corresponding to the connecting portion 20. A quadrangular pyramid-shaped projection 31b is formed at the center of the panel portion 31a. A flange portion 31c rising from the panel portion 31a is formed in the portion. The outer panel 32 has a planar shape corresponding to the coupling portion 20 and has a cylindrical shape.
The portions 32a to 32d corresponding to a to 20d have a triangular cross-section, and the central portion has a quadrangular pyramid shape corresponding to the protrusion 31b of the inner panel 31, and the inner panel 31 has an outer peripheral edge. They are fixed to each other.

In the reinforcing member 30, the inner panel 3
The quadrangular pyramid base point A of the first projection 31b and the quadrangular pyramid base point B of the quadrangular pyramid corresponding to the same projection 31b of the outer panel 32 are coincident with each other. It is fixed to the flange portions while being sandwiched between the two flange portions, and is disposed in a space within the coupling portion 30.

In the reinforcing structure having such a configuration, since the reinforcing member 30 employed has a triangular cross-section at both a vertically extending portion and a laterally extending portion, each reinforcing member 30 at the coupling portion 20 corresponding to the portion has a triangular shape. Tube sections 20a to 20d
The cross-sectional deformation due to the bending load and the torsional load is suppressed, and the rigidity of the connecting portion 20 increases. Further, in the reinforcing member 30, since the center portions of the outer panel 32 and the inner panel 31 are formed in the corresponding quadrangular pyramid-shaped projections, the connecting portion 20 has quadrangular pyramid-shaped projections having different heights.
There are different types of protrusions, and the rigidity of any part of the joint 20 increases. In the present embodiment, in particular, since the protrusions 31b of the inner panel 31 and the base points A and B of the square pyramids of the outer panel 32 are located at the same point, each square pyramid when the panels 31 and 32 are deformed. The deformation direction of the part is different, and the deformation at the time of deformation will be mutually restrained,
The generation of distortion in the central space in the joint 20 is suppressed, and the rigidity of the joint 20 is further increased.

Therefore, if the reinforcing structure is employed, the joint portion 20 is provided with sufficient rigidity to withstand bending and torsional loads in two directions, that is, a vertical direction and a horizontal direction. It is not necessary to adopt a high material for both the rail and the rail, and a material having a sufficiently large thickness, so that the weight and cost of the skeleton can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connecting portion employing a reinforcing structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of a reinforcing member used in the joint.

FIG. 3 is a perspective view of an inner panel constituting the reinforcing member.

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

FIG. 5 is a perspective view schematically showing a skeleton of a vehicle.

[Explanation of symbols]

10 skeleton, 11 pillar, 11a, 11b pillar part, 12 rail, 12a, 12b rail part, 20 ...
Coupling portion, 20a to 20d: cylindrical portion, 21: inner panel,
Reference numeral 22 denotes an outer panel, 30 denotes a reinforcing member, 31 denotes an inner panel, 31b denotes a protrusion, and 32 denotes an outer panel.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B62D 31/02 B62D 25/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle comprising: a plurality of pillars having a U-shaped cross section extending in a vertical direction; and one or more rails having a U-shaped cross section extending in a lateral direction and joined to the pillars to connect the pillars. A frame of a vehicle body that forms a partial shape of the body of the vehicle, an outer plate is fixed to the outside and forms a part of the body of the vehicle, and the pillar includes an upper pillar portion and a lower pillar portion. The rail is composed of a plurality of front and rear rail portions, and a cross-shaped coupling portion provided at a tip portion of one of the two pillar portions has a tip portion of the other pillar portion in a vertical direction. A cruciform shape corresponding to the coupling portion in the coupling portion in a skeleton of a vehicle body in which the front end portions of the respective rail portions are laterally fitted to and joined to the coupling portion; Arranging reinforcement members The reinforcing member has a cross-shaped flat inner panel having a quadrangular pyramid-shaped projection at the center corresponding to the connecting portion, and a planar shape corresponding to the connecting portion having a triangular cross section. Has a quadrangular pyramid shape corresponding to the projection of the inner panel, and is constituted by the inner panel and an outer panel fixed at an outer peripheral edge portion.