CN104903181A - Roof structure of vehicle - Google Patents

Abstract

The purpose of the invention is to ensure sufficient strength against a load received from the top direction of a vehicle (from the road surface) when the vehicle overturns and becomes inverted. The sufficient strength is achieved without bringing about an increase in the weight of the vehicle. The roof structure (10) of the vehicle comprises a roof module (11) and a pair of body side modules (12). The body side modules (12) each have a body side inner panel (17) extending in the vehicle longitudinal direction, a body side outer panel (18) placed at a gap from the vehicle-widthwise outer side of the body side inner panel (17) and forming a closed cross section with the body side inner panel (17), and pillar reinforcements (19, 20) placed in the gap between the body side inner panel (17) and the body side outer panel (18) and forming a closed cross section with the body side inner panel (17). The pillar reinforcements (19, 20) are formed so that one end is in contact with the inner wall top surface of the body side outer panel (18), and the other end extends vertically with respect to the vehicle.

Description

vehicle roof structure

technical field

The present invention relates to a roof structure for a vehicle.

Background technique

FIG. 4 and FIG. 5 show the roof structure of a conventional vehicle. In addition, in FIGS. 4 and 5 , arrow FR indicates the vehicle front direction, and arrow UP indicates the vehicle upward direction.

The roof structure 40 of the vehicle of the conventional example shown in FIG. 4 and FIG. 5 includes: a roof module 41 constituting the roof 40a of the vehicle; Assume that the roof side sill 40b, the front pillar 40c, and the rear pillar 40d constitute the vehicle.

The roof module 41 has: a roof panel 43 extending in the front-rear direction of the vehicle; closed section; the roof center rod 45 in the shape of a sectional hat is attached to the middle part of the roof panel 43 in the vehicle front-rear direction to form a closed section between the middle part of the roof panel 43 in the vehicle front-rear direction; and the rear part in the shape of a sectional hat The roof beam reinforcement 46 is attached to the rear portion of the roof panel 43 and forms a closed section with the rear portion of the roof panel 43 .

The vehicle body side module 42 has: a vehicle body side inner panel 47 extending in the front-rear direction of the vehicle; a vehicle body side outer panel 48 provided with a space outside the vehicle body side inner panel 47 in the vehicle width direction; The pillar reinforcement (the front pillar reinforcement 49 and the rear pillar reinforcement 50) is arranged in the space between the vehicle body side inner panel 47 and the vehicle body side outer panel 48, and constitutes a space between the vehicle body side inner panel 47. Closed section. That is, the vehicle body side module 42 is a so-called frame member having a closed section formed by the vehicle body side inner panel 47 and the vehicle body side outer panel 48 .

In the front pillar reinforcement 49 , the front portion 49 a has a shape extending in the longitudinal direction of the front pillar 40 c, and the rear portion 49 b has a shape extending in the longitudinal direction of the roof side rail 40 b (see FIG. 5( a )). In addition, the flange portion 49c provided at the lower end of the front pillar reinforcement 49 is sandwiched between the flange portion 47a of the vehicle body side inner panel 47 and the flange portion 48a of the vehicle body side outer panel 48 (see FIG. )).

The rear pillar reinforcement 50 has the same structure as the front pillar reinforcement 49, the front portion 50a is shaped to extend in the longitudinal direction of the roof side sill 40b, and the rear portion 50b is shaped to extend in the longitudinal direction of the rear pillar 40d (see FIG. 5 (a)). In addition, a flange portion 50 c provided at the lower end of the rear pillar reinforcement 50 is sandwiched between the flange portion 47 a of the vehicle body side inner panel 47 and the flange portion 48 a of the vehicle body side outer panel 48 .

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2012-116420

Patent Document 2: Japanese Unexamined Patent Publication No. 2012-153289

Contents of the invention

Technical issues to be solved by the invention

In the roof structure of the vehicle of the conventional example shown in FIG. 4 and FIG. 5 , as a normal vehicle body strength (strength for loads received from the vehicle front-rear direction or the vehicle width direction), it is sufficient, but when the vehicle rolls over, The strength against the load received from the upper side of the vehicle (road surface) is insufficient when it is turned over. In this case, in order to sufficiently ensure the strength against the load received from the upper side of the vehicle (road surface), it is conceivable to increase the thickness of each panel and each reinforcement (reinforcement member) to increase the strength of the vehicle body, but such The method will cause the weight of the vehicle (body) to increase.

Here, an object of the present invention is to ensure sufficient strength against a load received from the upper side of the vehicle (road surface) when the vehicle overturns without increasing the weight of the vehicle.

Technical solution adopted to solve the problem

In order to achieve the above object, the vehicle roof structure of the present invention is characterized in that it includes: a roof module constituting the roof of the vehicle; The upper side beam and the column of the vehicle, the vehicle body side module has: the vehicle body side inner panel extending along the front and rear direction of the vehicle; provided, and forms a closed section between the vehicle body side inner panel; and a pillar reinforcement, provided in a space between the vehicle body side inner panel and the vehicle body side outer panel, and A closed section is formed between the vehicle body side inner panel, and the pillar reinforcement is formed such that one end abuts against the upper surface of the inner wall of the vehicle body side outer panel, and the other end extends in the vertical direction of the vehicle.

The other end of the pillar reinforcement may be sandwiched between the vehicle body side inner panel and the vehicle body side outer panel.

the effect of the invention;

According to the present invention, there is an excellent effect that sufficient strength against a load received from the upper side of the vehicle (road surface) can be ensured when the vehicle overturns without increasing the weight of the vehicle.

Description of drawings

FIG. 1 is an exploded perspective view of a roof structure of a vehicle according to one embodiment of the present invention.

2( a ) is a side view of a roof structure of a vehicle according to an embodiment of the present invention, ( b ) is a cross-sectional view taken along line A-A of ( a ), and ( c ) is a cross-sectional view taken along line B-B of ( b ).

Fig. 3 is an exploded perspective view of a vehicle roof structure according to another embodiment of the present invention.

Fig. 4 is an exploded perspective view of a conventional vehicle roof structure.

Fig. 5(a) is a side view of the roof structure of a conventional vehicle, and Fig. 5(b) is a sectional view taken along line A-A of (a).

Detailed ways

Hereinafter, preferred embodiments of the present invention will be described in detail based on the drawings.

1 and 2 show a roof structure of a vehicle according to an embodiment of the present invention. In addition, in FIGS. 1 and 2 , arrow FR indicates the vehicle front direction, and arrow UP indicates the vehicle upward direction.

As shown in FIGS. 1 and 2 , the vehicle roof structure 10 of the present embodiment includes: a roof module 11 constituting a roof 10 a of the vehicle (vehicle body); They are arranged at intervals in the direction, and constitute the roof side sill 10b, the front pillar 10c, and the rear pillar 10d of the vehicle (vehicle body).

The roof module 11 has: a roof panel 13 extending in the front-rear direction of the vehicle; A closed section; a roof center rod 15 in the shape of a cross-sectional hat is mounted on the middle part of the roof panel 13 in the front-rear direction of the vehicle to form a closed cross-section with the middle part of the roof panel 13 in the front-rear direction; and a rear cross-section in the shape of a hat The roof beam reinforcement 16 is attached to the rear of the roof panel 13 and forms a closed cross section with the rear of the roof panel 13 .

In the present embodiment, the thickness of the roof panel 13 is set to be equal to the thickness of the roof panel 43 in the conventional vehicle roof structure 40 shown in FIGS. 4 and 5 . In addition, in the present embodiment, the plate thicknesses of the front roof beam reinforcement 14, the roof center pole 15, and the rear roof beam reinforcement 16 are set to be the same as those of the vehicle of the conventional example shown in FIGS. 4 and 5 . The plate thicknesses of the front roof rail reinforcement 44 , the roof center rail 45 , and the rear roof rail reinforcement 46 in the roof structure 40 are equal to each other.

In the present embodiment, the front roof rail reinforcement 14 , the roof center pole 15 , and the rear roof rail reinforcement 16 are respectively joined to the roof panel 13 by welding to constitute the vehicle body side module 12 . In addition, the front roof rail reinforcement 14 , the roof center rail 15 , and the rear roof rail reinforcement 16 may also be respectively bonded to the roof panel 13 using bolts or the like.

The vehicle body side module 12 has: a vehicle body side inner panel 17 extending in the front-rear direction of the vehicle; a vehicle body side outer panel 18 provided with a space outside the vehicle body side inner panel 17 in the vehicle width direction; The pillar reinforcements (the front pillar reinforcement 19 and the rear pillar reinforcement 20) are arranged in the space between the vehicle body side inner panel 17 and the vehicle body side outer panel 18, and are formed between the vehicle body side inner panel 17. Closed section. That is, the vehicle body side module 12 is a so-called frame member having a closed cross section formed by the vehicle body side inner panel 17 and the vehicle body side outer panel 18 .

The front pillar reinforcement 19 is formed such that one end abuts on the upper surface of the inner wall of the vehicle body side outer panel 18 and the other end extends in the vertical direction (vertical direction) of the vehicle. That is, the front pillar reinforcement 19 is a closed cross-sectional configuration (refer to FIG. 2( a) ): the front portion 19 a is a shape extending in the lengthwise direction of the front pillar 10 c, and the rear portion 19 b is a vertically upward shape (vertical portion) , reaching the upper surface of the inner wall of the vehicle body side outer panel 18 . In addition, the flange portion 19c provided at the lower end of the front pillar reinforcement 19 is sandwiched between the flange portion 17a of the vehicle body side inner panel 17 and the flange portion 18a of the vehicle body side outer panel 18 (see FIG. )).

The rear pillar reinforcement 20 has the same structure as the front pillar reinforcement 19 , and is formed such that one end abuts on the upper surface of the inner wall of the vehicle body side outer panel 18 and the other end extends in the vertical direction (vertical direction) of the vehicle. That is, the rear pillar reinforcement 20 is a closed cross-sectional configuration (refer to FIG. 2(a)): the rear portion 20b is a shape extending in the longitudinal direction of the rear pillar 10d, and the front portion 20a is a vertically upward shape (vertical portion) , reaching the upper surface of the inner wall of the vehicle body side outer panel 18 . In addition, a flange portion 20 c provided at the lower end of the rear pillar reinforcement 20 is sandwiched between the flange portion 17 a of the vehicle body side inner panel 17 and the flange portion 18 a of the vehicle body side outer panel 18 .

In this embodiment, the thicknesses of the vehicle body side inner panel 17, the vehicle body side outer panel 18, the front pillar reinforcement 19, and the rear pillar reinforcement 20 are set to be different from those of the conventional example shown in FIGS. 4 and 5 . The vehicle body side inner panel 47 , the vehicle body side outer panel 48 , the front pillar reinforcement 49 , and the rear pillar reinforcement 50 in the roof structure 40 of the vehicle have the same thickness.

In the present embodiment, the vehicle body side module 12 is formed by joining the vehicle body side inner panel 17 , the vehicle body side outer panel 18 , the front pillar reinforcement 19 , and the rear pillar reinforcement 20 to each other by welding. In addition, the vehicle body side inner panel 17 , the vehicle body side outer panel 18 , the front pillar reinforcement 19 and the rear pillar reinforcement 20 may be joined to each other using bolts or the like.

The operation of the present embodiment having the above configuration will be described.

In the roof structure 40 of the vehicle of the conventional example shown in FIGS. Figure 5(b)). Due to the presence of this space, the front pillar reinforcement 49 and the rear pillar reinforcement 50 cannot simultaneously generate resistance against a load received from the vehicle upper direction (road surface) and load load. In addition, since the front pillar reinforcement 49 and the rear pillar reinforcement 50 receive the load from the vehicle upper direction (road surface) at right angles with respect to the axial direction of the cross section thereof, it is not possible to provide resistance to the load received from the vehicle upper direction (road surface). fully produced.

In contrast, in the vehicle roof structure 10 according to the present embodiment, there is no space between the front pillar reinforcement 19 and the rear pillar reinforcement 20 and the inner wall upper surface of the vehicle body side outer panel 18 (see FIG. 2( b)). Therefore, the load from the vehicle upper direction (road surface) is simultaneously transmitted to the inner wall upper surface of the vehicle body side outer panel 18 and the front pillar reinforcement 19 and the rear pillar reinforcement 20, and the front pillar reinforcement 19 and the rear pillar reinforcement 20 enables simultaneous resistance to load and load. In addition, the vertical portion (rear portion 19b) of the front pillar reinforcement 19 and the vertical portion (front portion 20a) of the rear pillar reinforcement 20 receive a load from the vehicle upper direction (road surface) in the same direction as the cross-sectional axis direction thereof, thus The front pillar reinforcement 19 and the rear pillar reinforcement 20 can generate a large resistance force.

An analytical model of the roof structure of the vehicle of the present embodiment and an analytical model of the roof structure of the vehicle of the conventional example were produced and verified, and the effects of the following (1) and (2) were confirmed.

(1) According to the vehicle roof structure of the present embodiment, the resistance (maximum resistance) to the load received from the vehicle upper direction (road surface) can be increased by 4.0% compared with the conventional vehicle roof structure.

(2) According to the vehicle roof structure of the present embodiment, the weight can be reduced by 2.6% compared with the conventional vehicle roof structure.

That is, according to the roof structure of the vehicle of this embodiment, the weight of the vehicle (vehicle body) does not increase, and when the vehicle is overturned and overturned, it is possible to ensure sufficient strength against the load received from the upper side of the vehicle (road surface). .

Preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various other embodiments can be employed.

FIG. 3 shows a case where the present invention is applied to a cab of a truck. In addition, in FIG. 3 , arrow FR indicates the vehicle front direction, and arrow UP indicates the vehicle upward direction.

In the case of the vehicle roof structure 30 shown in FIG. 3 , the vehicle body side module 31 has a vehicle body side inner panel 32, a front side vehicle body side outer panel (front pillar panel) 33 constituting a front pillar 30a, and a The rear body side outer panel 34 such as the beam 30 b and the rear pillar 30 c , and the front pillar reinforcement 35 . Regarding the front pillar 30a, a front pillar reinforcement 36 extending in the vehicle up-down direction is added to the outer wall upper surface of the existing front pillar reinforcement 35. As shown in FIG. Alternatively, the front pillar reinforcement 36 extending in the vehicle vertical direction may be integrated with the existing front pillar reinforcement 35 . In addition, regarding the rear pillar 30c, since there is no conventional rear pillar reinforcement, a rear pillar reinforcement 37 extending in the vehicle vertical direction is newly added. Since the front pillar reinforcement 36 and the rear pillar reinforcement 37 in the vertical direction of the vehicle that form a closed section between the vehicle body side inner panel 32 extend in the vehicle vertical direction until reaching the inner wall upper surface of the rear side vehicle body side outer panel 34 configuration, thus achieving the same effects as those of (1) and (2) above.

Symbol Description

10 Vehicle roof construction

11 roof module

12 Hull side modules

17 Body side inner panel

18 Body side outer panels

19 Front pillar reinforcement (pillar reinforcement)

20 Rear pillar reinforcement (pillar reinforcement)

30 Vehicle roof construction

31 Body side module

32 Body side inner panel

33 Front body side outer panel (body side outer panel)

34 Rear body side outer panel (body side outer panel)

36 Front pillar reinforcement (pillar reinforcement)

37 Rear pillar reinforcement (pillar reinforcement)

Claims (2)

1. a roof construction for vehicle, is characterized in that,

The roof construction of this vehicle possesses:

Roof module, forms the roof of vehicle; And

A pair car body side module, spaced apart and arrange along overall width direction, form roof rail and the column of described vehicle,

Described car body side module has:

Car body side wainscot, extends along vehicle fore-and-aft direction;

Car body side outer panels, arranges in the arranged outside space, overall width direction of described car body side wainscot, and between described car body side wainscot, forms closed section; And

Pillar reinforcement, is disposed in the space between described car body side wainscot and described car body side outer panels, and forms closed section between described car body side wainscot,

Described pillar reinforcement is formed as one end and abuts with the inwall upper surface of described car body side outer panels, and the other end extends along vehicle above-below direction.

2. the roof construction of vehicle as claimed in claim 1, is characterized in that,

The other end of described pillar reinforcement is clamped between described car body side wainscot and described car body side outer panels.