JP3329535B2 - Car side 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 side body structure of an automobile in which a pillar reinforcement is joined to a side sill reinforcement of a side sill portion.

[0002]

In an automobile, to deal with the load applied to the vehicle body side, for example, as the real-Open 3-17981 JP 7, by the side sill portion A and the side sill outer panel B and side sill inner panel C A side sill reinforcement D that divides the closed cross section in the left and right direction of the side sill portion A is arranged in the side sill portion, while having a closed cross section structure extending in the front-rear direction.
Further, a technique of joining a pillar portion E to the side sill portion A is disclosed.

[0003]

However, simply joining the pillar portion E to the side sill portion A results in insufficient strength of the joint portion and insufficient rigidity of the side sill portion and the pillar portion against the side load. There is.

Accordingly, an object of the present invention is to provide a side body structure of an automobile which can increase the joining strength between a side sill portion and a pillar portion and secure good rigidity against a side load.

[0005]

Means for Solving the Problems That is, the invention of claim 1 (hereinafter referred to as the present invention), the upper portion of the pillar portion is connected to the roof rail portion, the lower portion is connected to the side sill section, The pillar section and the rear wheel house
And a side sill for dividing a closed cross section formed by a side sill inner panel and a side sill outer panel in the side sill portion in the left-right direction of the side sill portion. and reinforcement is provided, with the lower part of the pillar reinforcement in the pillar portion is joined to the compartment outer side portion of the side sill reinforcement, the pillar reinforcement Four at the joint portion
Move away from side sill reinforcement
That突段portion is formed, and protruding stepped portion and the said wheel house is connected by side sill gusset, the rhino
The upper end of the dosir gazette is joined to the quarter panel
And the lower end of the gusset is
Reinforcement pillar reinforcement and
These parts are joined to the part extending rearward from the joint of
Idsil gazette, quarter panel and pillar info
Sumento and the wheel house and the side sill rain Four
The box structure is formed by the
Furthermore, the closed cross section of this box structure is the second side silgaze
It is divided into upper and lower parts by a slot .

[0006]

According to the present invention, since the side sill reinforcement and the pillar reinforcement are joined, the joining strength between the side sill portion and the pillar portion is increased. In this case, since the rigidity of the pillar reinforcement is increased by forming the protrusion in the pillar reinforcement at this joint, the joint strength with the side sill reinforcement further increases.

Further , according to the present invention, the joint between the side sill reinforcement and the pillar reinforcement is supported by the side sill gusset from the rear, thereby increasing the rigidity of the joint.

Furthermore, according to the present invention, since the side sill <br/>Gaze' bets are connected <br/> the突段portion of the pillar reinforcement, by the side sill Gazette these突段portion The rigidity is further improved.

[0009] In addition, according to the present invention, the box structure
More rigidity at the joint between the pillar and side sill
And can respond well to the load, especially from the rear of the vehicle.
Will be. Moreover, the gusset has its box structure
Reinforced by a second gusset that divides the closed cross section vertically
To ensure even more side load and rear load
Will be able to deal with it.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 6 show a center pillar portion of a vehicle body according to the present embodiment. A pillar reinforcement 3 is connected to a roof rail portion 1 and a side sill portion 2.

[0011] In this case, the door sill 2 above (not shown) similarly side sill outer panel and the structure of FIG. 7 and is composed of a side sill inner panel 4 and the side sill reinforcement 5 which includes a side sill outer panel and side sill inner panel 4 As a result, a closed section extending in the front-rear direction of the vehicle body is formed, and the closed section is divided in the left-right direction by the side sill reinforcement 5 located inside.

Meanwhile, the pillar reinforcement 3 above, the pillar reinforcement upper 3A the upper is joined to the roof rail portion 1, in the pillar reinforcement lower 3B which bottom is joined to the side sill reinforcement 5 bisected and and with these lower and upper are unifying superimposed as shown in FIG. Also, a quarter panel 6 (see FIGS. 2 and 3 ) is joined to the passenger compartment side of the pillar reinforcement 3,
Further, a rear fender panel 7 is joined to the outside of the vehicle, a closed section extending vertically between the quarter panel 6 and the rear fender panel 7 is formed in the pillar portion 8, and the pillar reinforcement 3 defines the closed section in the left-right direction. The shape is divided into two.

Furthermore, in the junction between the pillar reinforcement lower 3B and side sill reinforcement 5, although not shown, with which finished Sai de shea <br/> Ruautapaneru in front of the joint, As shown in FIG. 5 , the above-described lower portion of the quarter panel 6 is sandwiched and joined between the upper portion of the side sill inner panel 4 and the upper portion of the side sill reinforcement 5, and the floor panel 9 is attached to the side sill inner panel 4. Joined. in addition,
As shown in FIGS. 4 and 5 , the lower portion of the pillar reinforcement lower 3B is joined to the side sill reinforcement 5 by being applied from the outside of the passenger compartment.
Joining flanges 10 and 1 formed on the front and rear portions of the pillar reinforcement lower 3 from above the joint portion of the pillar reinforcement lower 3B.
In the state where the pillar reinforcement lower 3B is joined to the side sill reinforcement 5 by the joining flanges 10 and 10, the projecting step 11 is formed. space X between the rhino <br/> de shea Le reinforcement 5 is generated, are made as closed cross section extending in the vertical direction is formed by.

According to this structure, since joining the pillar reinforcement 3 and the side sill reinforcement ment 5, the bonding strength is increased between the pillar portion 8 and the side sill section 2, the pillar portion 8 as well as the door sill 2, the rigidity against the load applied from the side of the vehicle body is increased.

In addition, since the projecting portion 11 provided in the pillar reinforcement lower 3B forms a closed cross section extending in the vertical direction by the space X, the joining strength and rigidity are increased, and the side load is increased. Can be better dealt with.

[0016] As shown in FIGS. 1 and 6, in addition to the above structure, the joint portion between the pillar reinforcement 3 and the side sill reinforcement 5, the wheel house 12 which is formed in the quarter panel 6 Side sill gussets are provided.

[0017] That is, the side sill Gazette first
The first gusset 13 has a substantially L-shaped cross section, is joined to the quarter panel 6 between the pillar reinforcement lower 3 </ b> B and the wheel house 12, and further includes a gusset 13 and a second gusset 14. 2 gussets 1
4 are also disposed between the pillar reinforcement lower 3 </ b> B and the wheel house 12.

[0018] In this case, the second gusset 14 has a substantially U-shaped cross-section, a flange 15 provided in the upper arm part 14A as shown in FIG. 6 is joined to the quarter panel 6 with the flange 16 of the first gusset 13 The lower piece 14 </ b> B is joined to the upper surface of the side sill reinforcement 5. The front end portion 14C (see FIG. 1 ) is joined to the rear surface of the step portion 11 of the pillar reinforcement lower 3B, and the rear end portion 14D rides on the upper surface of the wheel house 12. The second gusset 14, the pillar reinforcement lower 3B, the side sill reinforcement 5 and the wheel house 12 form a box-shaped reinforcing structure. Further, the first gusset 13 has a flange 17 provided at the lower edge thereof joined to the vertical piece 14E of the second gusset 14 from the inside, thereby dividing the closed cross section inside the second gusset into upper and lower parts.

According to structure of this, since it is above the box structure by a side sill gusset 13, 14 between the pillar reinforcement lower 3B and the wheel house 12, the junction of the pillar portion 8 and the side sill section 2 The rigidity of the vehicle is increased, and it is possible to cope with a load particularly from the rear of the vehicle body.

[0020] Moreover, the second gas peptidase Tsu bets 14 from being reinforced by the first gusset 13 for dividing the closed cross section of the box-like, so that more reliably deal with more side load and rear load.

[0021]

As apparent from the above description, the present invention
According to Ming, since joining the side sill reinforcement and the pillar reinforcement, the bonding strength between the side sill portion and the pillar portion is increased. In this case, in this joint, the rigidity of the pillar reinforcement is increased by forming a protruding step in the pillar reinforcement, so that the joint strength with the side sill reinforcement is further increased. Therefore, rigidity can be reliably ensured, and a load from the side of the vehicle body can be satisfactorily dealt with.

Further, according to the present invention, so that the joint between the side sill reinforcement and the pillar reinforcement is prop supported from the rear by the side sill Gazette, the rigidity of the joint portion is increased, the side load In addition, a load from the rear of the vehicle body can be well handled.

Furthermore, according to the present invention, since the side sill <br/>Gaze' bets are connected <br/> the突段portion of the pillar reinforcement, by the side sill Gazette these突段portion The rigidity is further improved.

[0024] In addition, according to the present invention, the box structure
More rigidity at the joint between the pillar and side sill
And can respond well to the load, especially from the rear of the vehicle.
Will be. Moreover, the gusset has its box structure
Reinforced by a second gusset that divides the closed cross section vertically
To ensure even more side load and rear load
Will be able to deal with it.

[Brief description of the drawings]

FIG. 1 is a center on the left side of a vehicle body according to an embodiment of the present invention .
It is a side view of a pillar part .

FIG. 2 is an enlarged view cut along the line AA in FIG . 1 ;

FIG. 3 is an enlarged view cut along the line BB in FIG . 1 ;

FIG. 4 is an enlarged sectional view taken along line CC in FIG . 1 ;

FIG. 5 is an enlarged cross -sectional view taken along line DD in FIG . 4 ;

FIG. 6 is an enlarged view cut along the line EE in FIG . 1 ;

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Roof rail part 2 Side sill part 3 Pillar reinforcement 4 Side sill inner panel 5 Side sill reinforcement 6 Quarter panel 8 Pillar part 11 Protrusion part 12 Wheel house 13 1st gusset (2nd side sill gazette)
G) 14 2nd gusset (side sill gazette) X space

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-66375 (JP, A) JP-A-5-24557 (JP, A) JP-A-5-69859 (JP, A) 172778 (JP, U) JP 5-16560 (JP, U) JP 317981 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B62D 25/04 B62D 25 / 08 B62D 25/20

Claims (1)

(57) [Claims] The top of claim 1] pillar portion connected to the roof rail portion, the lower portion is connected to the sill, the
Quarter panel between the pillar section and the rear wheel house
A side body structure of an automobile Le is arranged, to the side sill portion, the side sill reinforcement for dividing the closed section formed by the side sill inner panel and a side sill outer panel in the lateral direction of the door sill is provided are, together with the lower part of the pillar reinforcement in the pillar portion is joined to the compartment outer side portion of the side sill reinforcement, the joint portion
Side sill on the above pillar reinforcement
A protruding step away from the reinforcement is formed,
And the step portion and the wheel house are connected by a side sill gusset.
Section is joined to the quarter panel and
The lower end of Zet is the side sill reinforcement
Extending rearward from the joint with the pillar reinforcement
The side sill gazette and
Water panel and pillar reinforcement and wheels
House and side sill reinforcement
Box structure is formed, and this box structure
Is divided vertically by the second side sill gazette.
A side body structure of an automobile, which is split .