JP2007190992A - Center pillar understructure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress a deformation of a center pillar in side collision of a vehicle and prevent the reduction of a space inside a cabin due to an air conditioner duct. <P>SOLUTION: A lower part 58A of a pillar duct 58 is inserted between an upper surface opening part 43 for the air conditioner duct of a gusset 42 and an inner wall part 12B in a vehicle width direction of the center pillar 12. A triangle part surrounded by the gusset 42, the center pillar 12, and a gusset base 40 and a floor panel 30 which compose a floor part is the side surface opening part 60, and a rear part 62A of the floor duct 62 is inserted into the side surface opening part 60 for the air conditioner duct. The lower part 58A of the pillar duct 58 and the rear part 62A of the floor duct 62 are connected with each other at the outside in the vehicle width direction of the gusset 42 and the gusset base 42, namely at the outside of a cabin, and an air conditioned airflow is supplied from the floor duct 62 to the pillar duct 58. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a center pillar lower structure in which a duct for air conditioning is arranged in a lower portion of a center pillar in a vehicle such as an automobile.

2. Description of the Related Art Conventionally, a center pillar lower structure in which an air conditioning duct is disposed below a center pillar in a vehicle is known (see, for example, Patent Document 1). In this technique, the lower end portion of the pillar duct is connected to the opening portion of the standing portion of the floor duct that is arranged upward at the position of the lower end portion of the center pillar.
JP 2003-285622 A

  However, in the center pillar lower structure of Patent Document 1, the standing portion of the floor duct is arranged at the lower portion of the center pillar and the inner side in the vehicle width direction (the vehicle interior side) of the rocker (also referred to as a side sill). For this reason, in the configuration in which the reinforcing member for suppressing the deformation of the center pillar in the vehicle interior direction at the time of the vehicle side collision is provided on the inner side in the vehicle width direction of the center pillar, the standing portion of the floor duct is arranged in the vehicle width direction of the reinforcing member. It is necessary to arrange it inside (vehicle compartment side). As a result, the vehicle interior space is narrowed.

  In view of the above facts, an object of the present invention is to provide a center pillar lower structure that can suppress deformation of the center pillar at the time of a vehicle-side collision and can prevent a decrease in a vehicle interior space due to an air conditioning duct.

  The center pillar lower structure according to the first aspect of the present invention includes a center pillar disposed in a longitudinal direction intermediate portion of a vehicle side portion along the vehicle vertical direction, and a floor adjacent to the root portion of the center pillar. A gusset main body fixed to the upper surface of the unit, provided with a side opening for the air conditioning duct on the side surface, and provided with an upper surface opening for the air conditioning duct on the upper side.

  A side opening for the air conditioning duct is formed on the side surface of the gusset main body fixed to the upper surface of the floor portion adjacent to the base portion of the center pillar arranged in the longitudinal direction in the longitudinal direction of the vehicle side portion along the vehicle vertical direction. The upper surface opening for an air-conditioning duct is provided in the upper part of the gusset main body. For this reason, an air-conditioning duct can be arrange | positioned in the vehicle width direction outer side of a gusset main body by inserting an air-conditioning duct in the side opening part for air-conditioning ducts of a gusset main body, and the upper surface opening part for air-conditioning ducts. As a result, the center pillar can be prevented from being deformed by the gusset main body when the vehicle collides, and the air conditioning duct does not protrude into the vehicle interior.

  According to a second aspect of the present invention, in the center pillar lower structure according to the first aspect, the side opening for the air conditioning duct is formed in a corner portion surrounded by the gusset body, the center pillar, and the floor portion. It is characterized by.

  A side opening for the air conditioning duct is formed in a corner portion surrounded by the gusset body, the center pillar, and the floor portion. For this reason, the load which acts on a center pillar at the time of a vehicle side collision can be transmitted to a floor part via a gusset main body. As a result, it is possible to insert the air-conditioning duct disposed at the lower outer side in the vehicle width direction of the passenger compartment into the side opening for the air-conditioning duct without impairing the deformation suppressing effect of the center pillar at the time of the vehicle side collision by the gusset body.

  According to a third aspect of the present invention, in the center pillar lower structure according to the first or second aspect, the upper surface opening for the air-conditioning duct is formed at an intermediate portion in the vehicle longitudinal direction of the vehicle width direction outer side portion of the gusset body. It is formed.

  The upper surface opening for an air conditioning duct is formed in the vehicle longitudinal direction intermediate part of the vehicle width direction outer side part in a gusset main body. For this reason, the load which acts on a center pillar at the time of a vehicle side collision can be transmitted to a floor part via the vehicle front-back direction both ends of a gusset main body. As a result, the air conditioning duct arranged in the center pillar can be inserted into the top opening of the air conditioning duct without impairing the deformation suppressing effect of the center pillar at the time of a vehicle side collision by the gusset body.

  According to a fourth aspect of the present invention, the center pillar lower structure according to the first aspect has a gusset base fixed to the upper surface of the floor portion, and the gusset body is attached to the gusset base. To do.

  A gusset body is attached to a gusset base fixed to the upper surface of the floor portion. For this reason, the load which acts on a gusset main body from the center pillar at the time of a vehicle side collision can be reliably transmitted to the floor part of a vehicle via a gusset base. As a result, the deformation of the center pillar at the time of a vehicle side collision can be effectively suppressed.

  According to a fifth aspect of the present invention, in the center pillar lower structure according to the fourth aspect, the gusset main body and the gusset base are integrated with each other, and the side opening for the air conditioning duct has a vehicle width. The air conditioner duct upper surface opening is formed in the vehicle front-rear direction central portion of the vehicle width direction outer side portion.

  Since the gusset body and the gusset base are integrated, the number of parts can be reduced. In addition, a side opening for the air conditioning duct is formed in the vehicle width direction inner side portion of the gusset body and the gusset base that are integrated with each other, and at the vehicle longitudinal direction central portion of the vehicle width direction outer side portion. An upper opening for the air conditioning duct is formed. For this reason, the air-conditioning duct arranged at the center lower part in the vehicle width direction of the passenger compartment can be inserted into the side opening for the air-conditioning duct, and the air-conditioning duct arranged at the center pillar can be inserted into the upper-surface opening for the air-conditioning duct.

  The center pillar lower structure according to the first aspect of the present invention can suppress the deformation of the center pillar at the time of a vehicle side collision, and can prevent the reduction of the vehicle interior space due to the air conditioning duct.

  The center pillar lower structure of the present invention as set forth in claim 2 is characterized in that the air conditioning duct disposed at the lower outer side in the vehicle width direction of the passenger compartment is provided with the air conditioning duct without impairing the deformation suppressing effect of the center pillar at the time of vehicle side collision by the gusset body. It can be inserted into the side opening for use.

  In the center pillar lower structure of the present invention as set forth in claim 3, the air conditioning duct arranged in the center pillar is inserted into the upper opening of the air conditioning duct without impairing the deformation suppressing effect of the center pillar when the gusset body collides with the vehicle. it can.

  The center pillar lower structure of the present invention according to claim 4 can effectively suppress deformation of the center pillar at the time of a vehicle side collision.

  The center pillar lower structure of the present invention according to claim 5 is characterized in that the air conditioning duct disposed at the center lower portion in the vehicle width direction of the passenger compartment is opened to the side surface for the air conditioning duct without impairing the deformation suppressing effect of the center pillar at the time of a vehicle side collision. The air-conditioning duct arranged in the center pillar can be inserted into the top opening of the air-conditioning duct.

  1st Embodiment of the center pillar lower structure in this invention is described according to FIGS.

  In the figure, the arrow FR indicates the vehicle front direction, the arrow UP indicates the vehicle upward direction, and the arrow IN indicates the vehicle width inside direction.

  As shown in FIG. 1, in the present embodiment, a pair of rockers 10 are disposed along the vehicle longitudinal direction at the lower portions of both ends of the automobile body in the vehicle width direction. A pillar 12 is erected upward from the vehicle. FIG. 1 shows a rocker 10 and a center pillar 12 on the right side of the vehicle.

  The rocker 10 includes a rocker outer 14 constituting an outer portion in the vehicle width direction of the rocker 10 and a rocker inner 16 constituting an inner portion in the vehicle width direction of the rocker 10, and the center pillar 12 has an outer portion in the vehicle width direction of the center pillar 12. A center pillar outer 18 is provided, and a center pillar inner 20 is provided that constitutes the inner side of the center pillar 12 in the vehicle width direction.

  As shown in FIG. 3, a seat belt retractor 21 is disposed between the center pillar outer 18 and the center pillar inner 20 at the lower part of the center pillar 12. Further, a floor member 22 is disposed in the vehicle width direction inside of the rocker 10 with a predetermined distance from the rocker 10 in the vehicle width direction, and the longitudinal direction is arranged along the vehicle front-rear direction. The viewed cross-sectional shape is a hat cross-sectional shape with the opening directed upward in the vehicle.

  The rocker inner 16 and the floor member 22 are connected by a floor cross member outer 24 inside the center pillar 12 in the vehicle width direction. The floor cross member outer 24 has a longitudinal direction arranged along the vehicle width direction. The vehicle width direction outer side end portion 24A is on the vehicle width direction inner side wall portion 10A of the rocker 10, and the vehicle width direction inner side end portion 24B is on the floor member. The two outer wall portions 22A in the vehicle width direction are coupled by welding or the like.

  As shown in FIG. 1, a floor cross member 26 is arranged along the vehicle width direction in the longitudinal direction on the line extending inward in the vehicle width direction of the floor cross member outer 24 inside the floor member 22 in the vehicle width direction. Yes. The cross-sectional shape of the floor cross member 26 viewed from the vehicle width direction is a hat cross-sectional shape with the opening facing the vehicle upper side, and the vehicle width direction outer side end portion 26A is the vehicle width direction inner side wall portion 22B of the floor member 22. Are joined by welding or the like. Further, the upper surfaces of the flanges 22C and 22D of the floor member 22 are joined to the lower surface of the floor panel 30 by welding or the like as shown by a two-dot chain line in FIG. The top surface of the upper wall portion 16A of the rocker inner 16 is joined by welding or the like.

  As shown in FIG. 4, the upper surfaces of the flanges 26 </ b> B and 26 </ b> C of the floor cross member 26 are coupled to the lower surface of the floor panel 30 by welding or the like. Although not shown, the cross-sectional shape of the floor cross member outer 24 viewed from the vehicle width direction is also a hat cross-sectional shape with the opening directed upward of the vehicle, and the upper surface of the flange of the floor cross member outer 24 is also on the floor. The lower surface of the panel 30 is coupled by welding or the like.

  As shown in FIG. 1, a center pillar gusset base (hereinafter referred to as a gusset base) 40 constituting a gusset mounting portion is provided on the upper surface of a floor panel 30 as a floor portion adjacent to the root portion 12 </ b> A of the center pillar 12. Further, between the center pillar 12 and the gusset base 40, a center pillar gusset (hereinafter referred to as gusset) 42 as a gusset body is installed obliquely.

  As shown in FIG. 2, the upper wall portion 40A of the gusset base 40, which is the mounting surface of the gusset 42, is a rectangular plane disposed substantially horizontally, and is recessed downward in the vehicle center in the vehicle front-rear direction. A recess 41 is formed along the vehicle width direction. A front wall portion 40B is formed from the front end of the upper wall portion 40A of the gusset base 40 toward the lower side of the vehicle, and a flange 40C is formed from the lower end of the front wall portion 40B toward the front of the vehicle. Similarly, a rear wall portion 40D is formed from the rear end of the upper wall portion 40A of the gusset base 40 toward the lower side of the vehicle, and a flange 40E is formed from the lower end of the rear wall portion 40D toward the rear of the vehicle. Yes.

  On the inner side in the vehicle width direction of the upper wall portion 40A of the gusset base 40, inclined wall portions 40F are formed inward and downward in the vehicle width direction. Protrusions 40G and 40H projecting inwardly are formed so that the longitudinal direction is oblique from the upper part in the vehicle width direction toward the lower part in the vehicle width direction. A flange 40J is formed from the lower end of the inclined wall portion 40F of the gusset base 40 toward the vehicle width inner side. The front end portion of the flange 40J is connected to the inner end portion in the vehicle width direction of the flange 40C, and the rear end portion of the flange 40J is connected to the inner end portion in the vehicle width direction of the flange 40E.

  On the other hand, an inclined wall portion 40K is formed on the outer side in the vehicle width direction of the upper wall portion 40A of the gusset base 40 toward the outer side in the vehicle width direction, and the lower end of the inclined wall portion 40K is directed outward in the vehicle width direction. A flange 40L is formed. The front end portion of the flange 40L is connected to the outer end portion in the vehicle width direction of the flange 40C, and the rear end portion of the flange 40L is connected to the outer end portion in the vehicle width direction of the flange 40E.

  Each flange 40C, 40E, 40J, 40L of the gusset base 40 is coupled to the upper surface of the floor panel 30 by welding or the like.

  The upper side portion of the vehicle in the gusset 42 is an inclined wall portion 42A. The inclined wall portion 42A is inclined from the upper outer side in the vehicle width direction toward the lower inner side in the vehicle width direction, and is connected to the inclined wall portion 40F of the gusset base 40. A front wall portion 42B having a width W1 is formed from the front end of the inclined wall portion 42A of the gusset 42 toward the lower side of the vehicle, and a lower wall portion 42C is formed from the lower end of the front wall portion 42B toward the front of the vehicle. Yes. Furthermore, a flange 42D is formed from the front end of the lower wall portion 42C toward the vehicle lower side. Similarly, a rear wall portion 42E of width W2 is formed from the rear end of the inclined wall portion 42A of the gusset 42 toward the vehicle lower side, and a lower wall portion 42F from the lower end of the rear wall portion 42E toward the vehicle rear side. Is formed. Further, a flange 42G is formed from the rear end of the lower wall portion 42F toward the vehicle lower side.

  At both ends in the vehicle longitudinal direction of the inclined wall portion 42A of the gusset 42, convex portions 42H and 42J projecting inward in the vehicle width direction are formed obliquely in the longitudinal direction from the vehicle width direction outer side upper portion toward the vehicle width direction inner lower portion. Has been. That is, these convex portions 42H and 42J are inclined from the upper outside in the vehicle width direction toward the lower inner side in the vehicle width direction, and are connected to the convex portions 40G and 40H of the gusset base 40.

  A flange 42K is formed from the lower end of the inclined wall portion 42A of the gusset 42 toward the inside in the vehicle width direction. The front end of the flange 42K is connected to the inner end of the flange 42C in the vehicle width direction, and the rear end of the flange 42K is connected to the inner end of the flange 42F in the vehicle width direction.

  As shown in FIG. 1, the lower wall portions 42C and 42F of the gusset 42 are at both ends in the vehicle front-rear direction of the upper wall portion 40A of the gusset base 40, and the flange 42K is the inner side in the vehicle width direction of the upper wall portion 40A of the gusset base 40. The parts are connected to each other by fastening members (not shown) such as bolts so that they can be attached and detached. The flange 42D of the gusset 42 is coupled to the front wall 40B of the gusset base 40 by a fastening member (not shown) such as a bolt so that the flange 42G of the gusset 42 can be attached and removed. The gusset base 40 is coupled to the rear wall portion 40D of the gusset base 40 by a fastening member (not shown) such as a bolt so as to be attached and detached.

  Accordingly, the gusset 42 is coupled to the rocker 10, the floor member 22, the floor cross member outer 24, and the floor cross member 26 via the gusset base 40 and the floor panel 30.

  As shown in FIG. 2, a flange 42 </ b> L is formed from the outer end in the vehicle width direction of the front wall portion 42 </ b> B of the gusset 42 toward the front of the vehicle, and on the outer side in the vehicle width direction of the rear wall portion 42 </ b> E of the gusset 42. A flange 42M is formed outward in the vehicle width direction. Further, a flange 42N is formed from the upper end of the inclined wall portion 42A of the gusset 42 toward the vehicle upper side. The front end portion of the flange 42N is connected to the upper end portion of the flange 42L, and the rear end portion of the flange 42N is connected to the upper end portion of the flange 42M.

  As shown in FIG. 1, the flange 42L and the flange 42N of the gusset 42 are coupled to the inner surface of the center pillar 12 in the vehicle width direction of the vehicle width direction 12B by a fastening member (not shown) such as a bolt so as to be attached and detached. As shown in FIG. 5, the flange 42M of the gusset 42 is coupled to the rear surface of the rear wall portion 12C of the center pillar 12 by a fastening member (not shown) such as a bolt so as to be attached and detached.

  Accordingly, a collision load (arrow F1 in FIG. 1) acting on the center pillar 12 at the time of a vehicle side collision is applied to the floor portion of the vehicle via the convex portions 42H and 42J of the gusset 42 and the convex portions 40G and 40H of the gusset base 40. It is surely transmitted.

  As shown in FIG. 2, an air conditioning duct upper surface opening 43 is formed from the upper side of the vehicle at the center of the upper portion of the gusset 42 in the longitudinal direction of the vehicle. The air-conditioning duct upper surface opening 43 is formed from the flange 42N to a portion between the convex portion 42H and the convex portion 42J in the upper portion of the inclined wall portion 42A of the gusset 42, and has a cross-sectional shape viewed from the longitudinal direction. It is formed at a position where the ridge lines S of the convex portions 42H and 42J having a U-shaped cross section are not cut.

  In addition, the collision load F1 which acts on the center pillar 12 at the time of a vehicle side collision concentrates on each ridgeline S of the convex parts 42H and 42J. For this reason, when the width W1 of the front wall portion 42B and the width W2 of the rear wall portion 42E of the gusset 42 are reduced, the gusset 42 is easily deformed by the collision load F1. Accordingly, the width W1 of the front wall portion 42B and the width W2 of the rear wall portion 42E of the gusset 42 are set to be equal to or larger than the width that can prevent the deformation of the gusset 42 when the collision load F1 does not exceed the predetermined value.

  As shown in FIG. 1, a lower part 58A of a pillar duct 58 serving as an air conditioning duct is inserted between the upper opening 43 for the air conditioning duct of the gusset 42 and the inner wall part 12B of the center pillar 12 in the vehicle width direction. 58 is arranged along the longitudinal direction of the vehicle in the longitudinal direction.

  Further, a triangular portion that is a corner portion on the vehicle front side surrounded by the gusset 42, the center pillar 12, the gusset base 40 that constitutes the floor portion, and the floor panel 30 is a side opening 60 for the air conditioning duct. In addition, a rear portion 62A of a floor duct 62 as an air conditioning duct is inserted into the side opening 60 for the air conditioning duct. The rear portion 62A of the floor duct 62 is disposed along the longitudinal direction of the vehicle.

  As shown in FIG. 5, the lower part 58A of the pillar duct 58 and the rear part 62A of the floor duct 62 are connected to each other on the outside in the vehicle width direction of the gusset 42 and the gusset base 40, that is, outside the passenger compartment. A flow is sent from the floor duct 62 to the pillar duct 58.

  Accordingly, the connecting portion between the pillar duct 58 and the floor duct 62 is prevented from projecting inward in the vehicle width direction of the gusset 42 and the gusset base 42, that is, toward the vehicle interior side.

  Next, the operation of this embodiment will be described.

  In the present embodiment, a lower part 58 </ b> A of the pillar duct 58 is inserted between the upper surface opening 43 for the air conditioning duct of the gusset 42 and the inner wall part 12 </ b> B of the center pillar 12 in the vehicle width direction. Further, a triangular portion on the vehicle front side surrounded by the gusset 42, the center pillar 12, the gusset base 40 and the floor panel 30 constituting the floor portion is a side opening 60 for the air conditioning duct. A rear portion 62 </ b> A of the floor duct 62 is inserted into the duct side opening 60. Further, the lower part 58A of the pillar duct 58 and the rear part 62A of the floor duct 62 are connected to each other on the outside in the vehicle width direction of the gusset 42 and the gusset base 42, that is, outside the passenger compartment. The air is sent to the pillar duct 58.

  As a result, in this embodiment, the pillar duct 58 and the floor duct 62 can be disposed on the outer side in the vehicle width direction of the gusset 42 and the gusset base 42, and the pillar duct 58 and the floor duct 62 are formed between the gusset 42 and the gusset base 42. It does not protrude inward in the vehicle width direction, that is, in the vehicle interior side. For this reason, it is possible to prevent a decrease in vehicle interior space due to the pillar duct 58 and the floor duct 62. Further, it is possible to prevent interference between the pillar duct 58, the floor duct 62, and interior components such as seats.

  Further, in the present embodiment, the floor duct 62 arranged at the lower outer side in the vehicle width direction of the passenger compartment can be inserted into the air conditioning duct side opening 60 and the pillar duct 58 arranged in the center pillar 12 is used for the air conditioning duct of the gusset 42. It can be inserted into the upper surface opening 43. For this reason, the floor duct 62 and the pillar duct 58 can be easily connected.

  In the present embodiment, the gusset base 40 is provided on the upper surface of the floor panel 30 adjacent to the base portion 12 </ b> A of the center pillar 12, and the gusset 42 is installed between the center pillar 12 and the gusset base 40. . Further, the upper surface opening 43 for the air conditioning duct of the gusset 42 is formed so as not to cut each ridge line S of the convex portions 42H and 42J, and the side opening 60 for the air conditioning duct is formed on the front wall 42B of the gusset 42. The width W1 is not narrowed. Therefore, when a front bumper or the like of another vehicle collides with the center pillar 12 and a collision load (arrow F1 in FIG. 1) acts on the center pillar 12 at the time of a vehicle side collision, the collision load F1 is projected to the convexity of the gusset 42. It can be reliably transmitted to the floor portion of the vehicle via the portions 42H and 42J and the convex portions 40G and 40H of the gusset base 40. As a result, the deformation of the center pillar 12 toward the inside in the vehicle width direction at the time of a vehicle side collision can be reliably suppressed.

  Next, a second embodiment of the center pillar lower structure in the present invention will be described with reference to FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 6, in the present embodiment, an air conditioning duct upper surface front opening 70 is formed at the upper end of the convex portion 42H of the gusset 42, and an air conditioning duct upper surface rear opening at the upper end of the convex portion 42J. A portion 72 is formed. Further, an upper portion 42P of the inclined wall portion 42A of the gusset 42 is coupled to the inner wall portion 12B of the center pillar 12 in a vehicle width direction by a fastening member (not shown) such as a bolt so as to be attachable and detachable.

  As a result, at each upper part of the convex part 42H and the convex part 42J of the gusset 42, the gusset 42 and the center pillar 12 cause the closed cross-sectional part 74 and the closed cross-sectional part 76, which are rectangular in cross section, to extend in the vehicle vertical direction. Are formed along. For this reason, the closed cross-section portions 74 and 76 can improve the rigidity of the coupling portion between the gusset 42 and the center pillar 12.

  In addition, a lower portion 78A of a heater pillar duct 78 serving as an air conditioning duct is inserted into the upper surface front opening 70 for the air conditioning duct. For example, for a heater serving as an air conditioning duct inserted into the side opening 60 for the air conditioning duct. The warm air from the floor duct 80 can be blown from the portion below the center pillar 12 through the pillar duct 78 to the knee portion of the occupant seated in the rear seat.

  On the other hand, a lower portion 84A of an air conditioner pillar duct 84 serving as an air conditioning duct is inserted into the upper surface rear opening 72 for the air conditioning duct. For example, an air conditioner serving as an air conditioning duct inserted into the side opening 60 for the air conditioning duct. The cold air from the floor duct 86 is blown from the portion above the center pillar 12 to the rear side door glass via the pillar duct 84 so that the fogging of the door glass can be eliminated.

  In addition, since no duct is disposed between the convex portion 42H and the convex portion 42J in the gusset 42, a portion between the convex portion 42H and the convex portion 42J can be used as a seat belt path. As a result, the side surface of the center pillar garnish (not shown) covering the path of the seat belt extending from the seat belt retractor 21 to the upper side of the vehicle from the side of the vehicle interior can be arranged outside in the vehicle width direction, that is, outside the vehicle interior. It has become.

  Therefore, in this embodiment, the same operational effects as those of the first embodiment can be obtained, and the gusset 42 and the center pillar 12 can be obtained by the closed section 74 and the closed section 76 formed by the gusset 42 and the center pillar 12. The rigidity of the connecting portion can be improved, and deformation of the center pillar 12 toward the inside in the vehicle width direction at the time of a vehicle side collision can be further suppressed.

  Further, different air outlets provided in the center pillar 12 are supplied with airflows that have been air-conditioned differently using the air conditioning duct upper surface front opening 70 and the air conditioning duct upper surface rear opening 72 formed in the gusset 42. You can blow to each.

  Further, since the portion of the gusset 42 between the convex portion 42H and the convex portion 42J can be used as a seat belt route, the side surface of the pillar garnish that covers the seat belt route from the vehicle interior side is arranged outside the vehicle interior. it can. As a result, the vehicle interior space can be expanded.

  Next, a third embodiment of the center pillar lower structure in the present invention will be described with reference to FIG.

  In addition, about the same member as 2nd Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, the present embodiment is configured such that the air conditioning duct upper surface front opening 70 in the second embodiment is eliminated, and only the air conditioning duct upper surface rear opening 72 is formed. That is, a closed cross section 76 having a rectangular cross section is formed by the gusset 42 and the center pillar 12 at the upper portion of the convex portion 42J of the gusset 42, and a lower portion of the pillar duct 84 is formed at the upper rear opening 72 for the air conditioning duct. 84A is inserted.

  Therefore, in the present embodiment, the same operational effects as those of the first embodiment can be obtained, and the closed cross-section portion 76 formed by the gusset 42 and the center pillar 12 can be used to connect the gusset 42 and the center pillar 12. Rigidity can be improved, and deformation of the center pillar 12 inward in the vehicle width direction at the time of a vehicle side collision can be further suppressed. In addition, since the portion of the gusset 42 between the convex portion 42H and the convex portion 42J can be used as a seat belt route, the side surface of the pillar garnish that covers the seat belt route from the vehicle interior side is disposed outside the vehicle interior. it can. As a result, the vehicle interior space can be expanded.

  Next, a fourth embodiment of the center pillar lower structure in the present invention will be described with reference to FIG.

  In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 8, the gusset 90 of this embodiment has an integrated structure in which a gusset 42 that forms the upper portion of the gusset 90 and a gusset base 40 that forms the lower portion of the gusset 90 are communicated with each other by press molding or the like. It has become. In addition, a space between the convex portion 42H and the convex portion 42J in the gusset 90 is a concave portion 90A that is recessed toward the vehicle lower side, and the gusset 90 extends inwardly in the vehicle width direction. An installation portion 90B is formed.

  In the extending portion 90B of the gusset 90, the front-rear direction interval between the convex portion 42H and the convex portion 42J is narrow, and the extending portion 90B has an inner end in the vehicle width direction toward the inner lower side in the vehicle width direction. An inclined wall portion 90C is formed. Further, a flange 90D is formed from the lower end of the inclined wall portion 90C toward the inner side of the vehicle width. The front end portion of the flange 90D is connected to the inner end portion in the vehicle width direction of the flange 40C, and the rear end portion of the flange 90D is connected to the inner end portion in the vehicle width direction of the flange 40E.

  The flange 90D and the flanges 40C and 40E of the gusset 90 are coupled to the upper surface of the floor panel 30 so as to be attachable and detachable by fastening members (not shown) such as bolts.

  A rectangular air conditioner duct upper surface opening 93 is formed from the vehicle width direction outer side at the bottom in the vehicle width direction outer side of the recess 90A of the gusset 90, and the air conditioner duct upper surface opening 93 and the vehicle of the center pillar 12 are formed. A lower portion 58A of the pillar duct 58 is inserted between the inner wall portion 12B in the width direction. Further, the lower part 58A of the pillar duct 58 and the rear part 62A of the floor duct 62 are connected to each other inside the gusset 90, so that an air-conditioned air flow is blown from the floor duct 62 to the pillar duct 58.

  Accordingly, in the present embodiment, the same operational effects as those of the first embodiment can be obtained, and the gusset 42 that configures the upper portion of the gusset 90 and the gusset base 40 that configures the lower portion of the gusset 90 have an integrated structure. Can be reduced.

  Next, a fifth embodiment of the center pillar lower structure in the present invention will be described with reference to FIG.

  In addition, about the same member as 4th Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 9, in the present embodiment, an air conditioning duct side opening 92 is formed at the vehicle width direction inner end 90 </ b> E of the gusset 90, and the air conditioning duct side opening 92 and the floor panel 30 are formed. A vehicle width direction outer side portion 94A of a floor duct 94 as an air conditioning duct disposed at the center lower portion in the vehicle width direction of the passenger compartment is inserted. Further, the lower portion 58A of the pillar duct 58 and the vehicle width direction outer side portion 94A of the floor duct 94 are connected to each other in the gusset 90, and an air-conditioned air flow is sent from the floor duct 94 to the pillar duct 58. Yes.

  Therefore, in this embodiment, the same operational effects as those of the fourth embodiment can be obtained, and the vehicle width direction outer side portion 94A of the floor duct 94 disposed at the center lower portion in the vehicle width direction of the passenger compartment is connected to the side opening for the air conditioning duct. 92. For this reason, the floor duct 94 and the pillar duct 58 can be easily connected.

  In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the first to third embodiments, the gusset base 40 is attached to the upper surface of the floor panel 30. Alternatively, the gusset base 40 may be integrally formed on the floor panel 30 by pressing or the like.

  The shape of the gusset 42 is not limited to the above first to third embodiments, and may be any other shape as long as it can be installed between the center pillar 12 and the gusset base 40.

  Further, in each of the above embodiments, the direction of the conditioned air flow is configured to flow from the side opening for the air conditioning duct to the upper surface opening for the air conditioning duct. A configuration may be adopted in which the airflow duct upper surface opening flows to the air conditioning duct side opening.

  In each of the above embodiments, the corner portion on the vehicle front side surrounded by the gusset 42, the center pillar 12, the gusset base 40 and the floor panel 30 constituting the floor portion is used as the air conditioning duct side opening 60. However, the corner portion on the vehicle rear side surrounded by the gusset 42, the center pillar 12, the gusset base 40 and the floor panel 30 constituting the floor portion may be used as the side opening for the air conditioning duct.

  Moreover, the material of each duct in each said embodiment is comprised with materials, such as a metal plate and a synthetic resin, and is not specifically limited. Further, the cross-sectional shape of each duct is not particularly limited, such as a rectangle or a round shape.

  In addition, each duct in each of the above embodiments may be integrated with the gusset 42.

It is the perspective view seen from the vehicle slant front inner side which shows the center pillar lower part structure concerning 1st Embodiment of this invention. It is the disassembled perspective view seen from the vehicle slant front inner side which shows the gusset and gusset base of the center pillar lower part structure which concern on 1st Embodiment of this invention. FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. 1. FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. It is the perspective view seen from the vehicle slanting back inner side which shows the principal part of the center pillar lower part structure concerning 1st Embodiment of this invention. It is a perspective view corresponding to FIG. 5 which shows the center pillar lower part structure concerning 2nd Embodiment of this invention. It is a perspective view corresponding to Drawing 5 showing the center pillar lower part structure concerning a 3rd embodiment of the present invention. It is a perspective view corresponding to Drawing 2 showing the center pillar lower part structure concerning a 4th embodiment of the present invention. It is a perspective view corresponding to Drawing 2 showing the center pillar lower part structure concerning a 5th embodiment of the present invention.

Explanation of symbols

10 Rocker 12 Center Pillar 12A Center Pillar Root Part 22 Floor Member 24 Floor Cross Member Outer 26 Floor Cross Member 30 Floor Panel (Floor Part)
40 Center Pillar Gusset Base (Gusset Base)
42 Center Pillar Gusset (Gusset Body)
43 Top opening for air conditioning duct 58 Pillar duct (air conditioning duct)
60 Side opening for air conditioning duct 62 Floor duct (air conditioning duct)
70 Front opening for air conditioning duct Front opening 72 Upper opening for air conditioning duct Rear opening 78 Pillar duct (air conditioning duct)
80 Floor duct (air conditioning duct)
84 Pillar duct (air conditioning duct)
86 Floor duct (air conditioning duct)
90 Gusset 92 Side opening for air conditioning duct 93 Top opening for air conditioning duct 94 Floor duct (air conditioning duct)

Claims (5)

A center pillar arranged in the longitudinal direction of the vehicle side portion in the longitudinal direction of the vehicle along the vehicle vertical direction;
A gusset body that is fixed to the upper surface of the floor portion adjacent to the base portion of the center pillar, the side opening for the air conditioning duct is provided on the side surface, and the upper surface opening for the air conditioning duct is provided on the upper portion,
A center pillar substructure characterized by comprising:   The center pillar lower structure according to claim 1, wherein the side opening for the air conditioning duct is formed in a corner portion surrounded by the gusset body, the center pillar, and the floor portion.   The center pillar lower structure according to claim 1, wherein the upper surface opening for the air-conditioning duct is formed in an intermediate portion in the vehicle front-rear direction of the outer side portion in the vehicle width direction of the gusset body.   The center pillar lower structure according to claim 1, further comprising a gusset base fixed to an upper surface of the floor portion, and the gusset body being attached to the gusset base.   The gusset body and the gusset base have an integrated structure in which the interior communicates, the air conditioning duct side opening is formed in the vehicle width direction inner side, and the air conditioning duct upper surface opening is the vehicle width direction outer side. The center pillar lower structure according to claim 4, wherein the center pillar lower structure is formed at a central portion of the vehicle longitudinal direction.

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