JP2011251659A - Pillar structure of automobile body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a press-forming property of a reinforcing member, and to sufficiently obtain the safety and protection of an occupant upon a side collision even if the number of components is decreased.SOLUTION: The reinforcing member 5 is constituted by connecting one end of a roof side-rail side reinforcing panel 6 and one end of a side-sill side reinforcing panel 7 which are dividedly constituted, connecting the other end of the roof side-rail side reinforcing panel 6 to a roof side-rail 11 via a connecting reinforcing panel 9, and connecting the other end of the side-sill side reinforcing panel 7 to a side-sill 12. In the roof side-rail side reinforcing panel 6, one reinforcing extended portion 6c extending in the side-sill side reinforcing panel 7 while a protruding flange 6b is cut and removed is formed, in the side-sill side reinforcing panel 7, the other reinforcing extended portion 7c extending in the roof side-rail side reinforcing panel 6 while a protruding flange 7b is cut and removed is formed, and these reinforcing extended portions are superposed and bonded to each other.

Description

  The present invention relates to a pillar structure of an automobile body constituting a vehicle body side skeleton in an automobile.

  The pillar structure of an automobile body is configured by bridging a pillar body between a roof side rail and a side sill to form a side frame of the vehicle body, and the pillar body is an outer body disposed on the outside of the vehicle. The inner panel disposed on the side of the panel and the passenger compartment is superposed.

  Such a pillar structure, for example, a center pillar structure disposed in the center of the side of the passenger compartment, is locally deformed at a site where the pillar body faces the chest or abdomen of the seated passenger due to the side collision of the automobile. In order to prevent this, a reinforcing member is arranged in the internal space formed by the outer panel and the inner panel.

  As a conventional pillar structure in which a reinforcing member is arranged in this manner, the structure shown in FIG. 13 is known (see Patent Document 1).

Japanese Patent Application Laid-Open No. 2010-18254.

  According to FIG. 13, a center pillar a as a conventional pillar structure is configured by joining an outer panel b and an inner panel c that extend from a side sill (rocker) (not shown) to a roof side rail. .

  In an internal space formed by the outer panel b and the inner panel c, an outer reinforcement d as a reinforcing member, a lower hinge reinforcement r, and an upper hinge reinforcement s are arranged.

  The outer reinforcement d is formed by joining high-tensile steel plates via a laser welding parting line f, and the lower end portion is connected to a side sill and the upper end portion is connected to a roof side rail.

  The high strength steel plate constituting the upper side of the laser welding dividing line f in the outer reinforcement d is stronger than the high strength steel plate below the laser welding dividing line f, for example, by increasing the thickness or increasing the material strength. It is high.

  Further, the outer reinforcement d is provided with beads (parts weakened in the reinforcing member) k and m so as to cut out a pair of outer ridge lines j formed by the outer wall g and the pair of side walls i. .

  The bead k is located below the laser welding parting line f. The bead m is located above the laser welding dividing line f. Thereby, the center pillar a has the 1st weak part n implement | achieved by the bead k and the 2nd weak part o implement | achieved by the bead m.

  The outer reinforcement d is equipped with a lower door hinge p that protrudes outward from the center pillar a in the vehicle width direction at a portion between the beads k and m. A lower hinge reinforcement r is arranged on the inner side of the lower side of the laser welding parting line f of the outer reinforcement d so as to correspond to the portion to which the lower door hinge p is attached in the outer reinforcement d. ing.

  Further, a relatively long upper hinge is provided on the inner side of the upper side of the laser welding dividing line f of the outer reinforcement d so as to correspond to a portion to which the upper door hinge q is attached in the outer reinforcement d. Reinforcement s is arranged.

  In the pillar structure having such a configuration, the strength of the center pillar a is bent at the first fragile portion n and the second fragile portion o, and the bending moment at the time of a side collision can be suppressed.

  And the site | part in which the 1st weak part n and the 2nd weak part o which were bent in order to suppress the bending moment at the time of the side collision in the center pillar a exists in a passenger | crew's hip bone etc., and a relatively strong waist part It will be around. On the other hand, in the region where the chest or abdomen, which is a relatively weak part of the occupant above the first fragile part n in the center pillar a, exists, the deformation strength due to the side collision is secured, and the occupant Is designed to protect you safely.

  However, in the above conventional technique, the outer reinforcement d has the first weakened portion n and the second weakened portion o, and the upper side is a plate with respect to the lower side with the laser welding dividing line f as a boundary. Since it is configured to have a difference in strength by increasing the thickness or increasing the material strength, the press formability in the case of press molding is deteriorated.

  Further, since the outer reinforcement d is provided with the first weakened portion n and the second weakened portion o configured by forming the beads k and m, the lower hinge hinge r and the upper are provided. The side hinge reinforcement s will be installed. As a result, the predetermined mounting strength at the lower door hinge p and the upper door hinge q is increased. For this reason, in the conventional pillar structure, the number of parts is increased by the presence of the lower-side hinge reinforcement r and the upper-side hinge reinforcement s.

  Therefore, the present invention improves the press formability of the reinforcing member disposed in the internal space formed by the outer panel and the inner panel, and reduces the number of parts by eliminating the hinge reinforcement. In addition, an object of the present invention is to provide a pillar structure for an automobile body that can sufficiently protect the safety of an occupant during a side collision of the automobile.

  The pillar structure of an automobile body according to the present invention comprises a pillar body that is bridged between a roof side rail and a side sill that constitute a side frame of the vehicle body by superposing the outer panel and the inner panel together, and the outer panel And a pillar structure of an automobile body provided with a reinforcing member disposed in an internal space formed by an inner panel, wherein the reinforcing member is divided in a longitudinal direction of the roof side rail side reinforcing panel and the side sill side reinforcing panel After connecting the ends, connect the other end in the longitudinal direction of the roof side rail side reinforcing panel to the roof side rail through the connecting reinforcing panel, and connect the other end in the longitudinal direction of the side sill side reinforcing panel to the side sill side. The roof side rail side reinforcing panel and the support. The dossil side reinforcing panel is formed with an overhanging flange portion projecting outward on both sides in the longitudinal direction, and joining the overhanging flange portions to the connecting flange portions of the outer panel and the inner panel, respectively. Thus, in the internal space, the roof side rail side reinforcing panel is disposed adjacent to the outer panel side and the side sill side reinforcing panel is adjacent to the inner panel side. The side sill side reinforcing panel side is formed with one reinforcing extension part extending in a state where the overhanging flange part is cut off, and the side sill side reinforcing panel has a roof side rail side reinforcing panel side. The other reinforcing extension is formed in a state in which the overhanging flange is cut off, and both the reinforcing extensions are the same. Further, the ends of one of the reinforcing extension portions formed on the roof side rail side reinforcing panel are overlapped to the vicinity of the door hinge mounting portion attached to the outer panel. And

  By adopting such a configuration, the present invention is capable of extending one reinforcing extending portion formed in a state in which the protruding flange portion in the roof side rail side reinforcing panel is cut off, and the tension in the side panel side reinforcing panel. The other reinforcing extension portion that is formed so as to extend in a state where the output flange portion is cut off is polymerized and bonded to each other.

  Therefore, in the present invention, the reinforcing member is opposed to the occupant's chest or abdomen of the pillar main body by using a superposition bond between both reinforcing extending portions without using members having different plate thicknesses or materials as in the prior art. It is possible to prevent local deformation at the site and to sufficiently protect the occupant in the event of a side collision of the automobile.

  Further, in the present invention, since the reinforcing member can be configured to have high strength by the superposition of the two extending portions for reinforcement, as a result, it is possible to press as a result without using members having different plate thicknesses or materials as in the prior art. Formability can be improved.

  Furthermore, in the present invention, since the reinforcing member can be configured with high strength by the superposition of the two reinforcing extending portions, the hinge hinges which are separate parts as in the prior art are not used, and the door hinges are directly used. Even if it is attached to the reinforcing member, the door mounting strength can be sufficiently increased, and as a result, the number of parts can be reduced.

  And in this invention, since the front-end | tip of one reinforcement extension part formed in the roof rail side reinforcement panel has overlapped and extended to the periphery of the attachment part of the door hinge attached to an outer panel, Even if the hinge hinge, which is a separate part, is not used and the door hinge is directly attached to the reinforcing member, the door mounting strength can be sufficiently increased, and the number of parts can be reduced as a result.

  In addition, according to the present invention, since the tip of one reinforcing extension of the roof side rail side reinforcing panel extends over the side sill side reinforcing panel to the periphery of the door hinge mounting portion, the mounting portion of the door hinge Since there is only one side sill side reinforcement panel between the periphery and the side sill, there is only one side sill side reinforcement panel, so this part becomes a fragile part and the bending moment at the side collision of the car Therefore, the impact caused by the side collision of the occupant can be mitigated, and the safety of the occupant can be achieved.

  And the roof side rail side reinforcement panel 6 in this invention may be comprised with a high intensity | strength member with respect to the side sill side reinforcement panel.

  With this configuration, the present invention is such that the roof side rail side reinforcing panel 6 made of a high strength member such as a high-strength steel plate member is opposed to the outer panel side. You can keep away. As a result, it is possible to more efficiently prevent local deformation at a portion corresponding to the chest or abdomen of the occupant in the pillar body, and further improve the occupant safety protection function at the time of a side collision of the automobile. Can do.

  Moreover, you may make it comprise so that the other reinforcement extension part of the side sill side reinforcement panel in this invention may reach to the vicinity of the connection reinforcement panel. By adopting such a configuration, the present invention can further enhance the function of preventing local deformation in a portion corresponding to the chest or abdomen of the occupant in the pillar body due to the presence of the other extending portion. .

  Further, the connecting reinforcing panel in the present invention may be formed integrally with the roof side rail. Such an invention is employed within a range in which the formability of the roof side rail is not lowered, and can contribute to the direction of reducing the number of parts.

  The connecting reinforcing panel according to the present invention may be integrally formed with the roof side rail side reinforcing panel. Such an invention is employed within a range in which the formability of the roof side rail side reinforcing panel is not deteriorated, and can contribute to a reduction in the number of parts.

  In the present invention, one of the reinforcing extension portions formed to extend in a state in which the overhang flange portion in the roof side rail side reinforcing panel is cut out, and the overhang flange portion in the side panel side reinforcing panel are cut out. The other reinforcing extension formed extending in the state is polymerized and bonded to each other.

  Therefore, in the present invention, the reinforcing member does not use different members having different plate thicknesses or different materials from each other due to the polymerization bond between the reinforcing extending portions. As a result, it is possible to prevent local deformation in a portion of the pillar body that faces the occupant's chest or abdomen, and to sufficiently protect the occupant during a side collision in the automobile.

  Moreover, in this invention, a reinforcement member can be comprised by high intensity | strength by the superposition | polymerization coupling | bonding of both the extension parts for reinforcement. Therefore, press formability can be improved as a result without using members having different plate thicknesses or materials as in the prior art.

  Furthermore, in the present invention, since the reinforcing member can be configured with high strength by the superposition of the two reinforcing extending portions, the hinge hinges which are separate parts as in the prior art are not used, and the door hinges are directly used. Even if it is attached to the reinforcing member, the door mounting strength can be sufficiently increased, and as a result, the number of parts can be reduced.

  And in this invention, the front-end | tip of the one extension part for reinforcement formed in the roof rail side reinforcement panel has overlapped and extended to the attachment part periphery of the door hinge attached to an outer panel. As a result, even if the hinge reinforcement which is a separate part as in the prior art is not used and the door hinge is directly attached to the reinforcing member, the door mounting strength can be sufficiently increased and the number of parts can be reduced. .

  In addition, according to the present invention, the leading end of one reinforcing extension of the roof side rail side reinforcing panel extends over the side sill side reinforcing panel to the vicinity of the door hinge mounting portion. Therefore, the side sill side reinforcing panel is only present between the vicinity of the door hinge mounting region and the side sill without the presence of one reinforcing extension. As a result, such a portion becomes a fragile portion and bends by a bending moment at the time of a side collision of the automobile, so that the impact caused by the side collision of the occupant can be alleviated and the occupant can be protected.

It is the side view which drawn the center pillar of the automobile adopted and constituted as one embodiment concerning this invention from the car outside. It is the perspective view which decomposed | disassembled and drawn the center pillar of the motor vehicle shown in FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. It is explanatory drawing which drawn the coupling | bonding state of the roof side rail side reinforcement panel shown in FIG. 1, and the connection reinforcement panel. It is explanatory drawing which drawn the coupling state of the roof side rail side reinforcement panel and side sill side reinforcement panel shown in FIG. 1 from the vehicle body side side. It is explanatory drawing which drawn the coupling state of the roof side rail side reinforcement panel and side sill side reinforcement panel shown in FIG. 1 from the vehicle body front side. It is the perspective view which drawn a part of connection reinforcing panel and roof side rail in other embodiments concerning this invention. It is the perspective view which drawn the roof side rail side reinforcement panel and connection reinforcement panel in other form of implementation which concerns on this invention. It is the perspective view which drawn the side sill side reinforcement panel and the connection reinforcement panel in the further another form of implementation which concerns on this invention. It is the perspective view which decomposed | disassembled and drawn the center pillar of the motor vehicle in the past.

  This embodiment is a case where the center pillar is adopted as a pillar structure of an automobile body, and improves the press formability of a reinforcing member disposed in an internal space formed by an outer panel and an inner panel. At the same time, the number of parts is reduced by eliminating the hinge reinforcement, and the safety of passengers at the time of a side collision of the automobile is sufficiently achieved.

  Next, with reference to the drawings, as an embodiment according to the present invention, an embodiment in which the present invention is applied to a center pillar disposed in the center of a vehicle compartment side to constitute a vehicle body side skeleton in an automobile, particularly a passenger car, explain.

  First, in FIG. 1 and FIG. 2, the center pillar 1 extends between the side sill 12 constituting the skeleton of the vehicle body lower side portion and the roof side rail 11 constituting the skeleton of the vehicle body upper side portion, The upper and lower end portions are formed by joining the side sill 12 and the roof side rail 11 to each other.

  The center pillar 1 has an outer panel 2 formed in a generally hat-shaped general cross section located on the vehicle outer side and an inner panel 3 formed in a substantially flat plate shape located on the vehicle compartment side. In addition, the outer panel 2 and the inner panel 3 form an internal space 4 by joining the flange portions 2a and 3a formed on the outer peripheral portion of each other. A reinforcing member 5 is disposed in the internal space 4.

  The reinforcing member 5 is divided into a roof side rail side reinforcing panel 6 and a side sill side reinforcing panel 7 which are divided from each other. The roof side rail side reinforcing panel 6 is composed of a high-tensile steel plate. And it has the main-body part 6a which exhibits a substantially cross-sectional U-shape, and the overhang | projection flange part 6b which protrudes outward in the longitudinal direction (up-down direction of a vehicle body) of the main-body part 6a, respectively, respectively.

  Further, one reinforcing extension 6c is formed to extend on the lower end side of the main body 6a in a state where the overhanging flange 6b is cut off. One reinforcing extension 6c has a U-shaped cross section so that the main body 6a is extended.

  The side sill side reinforcing panel 7 is made of a steel plate having a relatively low tension compared to the high strength steel plate constituting the roof side rail side reinforcing panel 6, and also has a main body portion 7a having a U-shaped cross section and a main body portion 7a. In the longitudinal direction (vertical direction of the vehicle body), both sides have projecting flange portions 7b projecting outward. Furthermore, on the upper end portion side of the main body portion 7a, the other reinforcing extension portion 7c is formed extending in a state where the protruding flange portion 7b is cut off. The other reinforcing extension 7c has a U-shaped cross section so that the main body 7a is extended as it is.

  The roof side rail side reinforcing panel 6 and the side sill side reinforcing panel 7 overlap the main body portion 6a of the roof side rail side reinforcing panel 6 with the other reinforcing extension portion 7c. At the same time, by spot welding as shown by the black dots in FIG. 8 and FIG. 9 with one reinforcing extension 6c overlaid on the main body 7a of the side sill-side reinforcing panel 7, the length of the main body 6a is increased. One end in the direction (lower end) and one end in the longitudinal direction (upper end) of the main body portion 7a are connected to each other. At this time, the lower end portion of the overhanging flange portion 6b and the upper end portions of the overhanging flange portion 7b are similarly superposed and connected by spot welding.

  In addition, a longitudinally facing piece 9 a of a connecting reinforcing panel 9 formed so as to have a substantially T shape is connected to the other longitudinal end (upper end) of the roof side rail side reinforcing panel 6. In this state, the laterally extending piece 9 b of the connecting reinforcing panel 9 is in a state of protruding from the other end (upper end) in the longitudinal direction of the roof side rail side reinforcing panel 6. The reinforcing member 5 configured as described above has the roof side rail side reinforcing panel 6 opposed to the outer panel 2 side and the side sill side reinforcing panel 7 opposed to the inner panel 3 side. Arranged.

  The overhanging flange portion 6b of the roof side rail side reinforcing panel 6 and the overhanging flange portion 7b of the side sill side reinforcing panel 7 are overlapped with each other so that the flange portion 2a of the outer panel 2 and the flange of the inner panel 3 are overlapped. Spot welding is performed together with the flange portions 2a and 3a in a state of being inserted between the portions 3a. As a result, the pillar body 10 is configured in a state where the reinforcing member 5 is disposed in the internal space 4 formed by the outer panel 2 and the inner panel 3.

  The pillar body 10 is connected at its upper end to the roof side rail 11 by spot welding or the like via the horizontal piece 9b of the connecting reinforcing panel 9 and at its lower end to the side sill 12 by spot welding or the like. The As a result, the center pillar 1 is bridged between the roof side rail 11 and the side sill 12 to constitute a vehicle body side frame.

  Next, the structural relationship between the outer panel 2 and the inner panel 3 and the reinforcing member 5 will be described in more detail with reference to FIGS. That is, first, in FIG. 1, in the internal space 4 formed by the outer panel 2 and the inner panel 3, as shown in FIG. 3, which is a cross-sectional drawing of the upper end portion of the pillar body 10 on the roof side rail 11 side, On the outer panel 2 side, the roof side rail side reinforcing panel 6 is adjacently opposed. At the same time, the connecting reinforcing panel 9 is adjacently opposed on the inner panel 3 side.

  In such a state, between the flange portion 2a of the outer panel 2 and the flange portion 3a of the inner panel 3, the overhanging flange portion 6b of the roof side rail side reinforcing panel 6 and the vertical piece 9a of the connecting reinforcing panel 9 are provided. The mounting flange portion 9c formed in is sandwiched.

  In such a part, the roof side rail side reinforcing panel 6 and the connecting reinforcing panel 9 are preliminarily subjected to spot welding as shown by the black dots in FIG. 7 in a state including the overhanging flange portion 6b and the mounting flange portion 9c. If they are joined, four-layer spot welding can be avoided in the outer panel 2, the roof side rail side reinforcing panel 6, the connecting reinforcing panel 9 and the inner panel 3 as shown in FIG.

  Next, as shown in FIG. 4 in which the upper central portion of the pillar body 10 that is close to the roof side rail 11 side in FIG. 1 is drawn in a cross section, the inner panel 4 is formed in the inner space 4 formed by the outer panel 2 and the inner panel 3. The roof side rail side reinforcing panel 6 faces the outer panel 2 side. At the same time, the other reinforcing extension 7c of the side sill side reinforcing panel 7 is opposed to the roof side rail side reinforcing panel 6 on the inner panel 3 side.

  Thus, in this part, the overhanging flange portion 7b is cut off in the other reinforcing extension portion 7c of the side sill side reinforcing panel 7. Therefore, the three-layer structure of the flange portion 2a of the outer panel 2, the overhanging flange portion 6b of the roof side rail side reinforcing panel 6 and the flange portion 3a of the inner panel 3 is adopted. Is possible.

  Further, as shown in FIG. 5, which is a cross-sectional view of the lower central portion of the pillar body 10 that is close to the side sill side in FIG. 1, the outer panel 2 is formed in the inner space 4 formed by the outer panel 2 and the inner panel 3. The roof side rail side reinforcing panel 6 faces the side, and the side sill side reinforcing panel 7 faces the inner panel side.

  In such a state, between the flange portion 2a of the outer panel 2 and the flange portion 3a of the inner panel 3, the overhang flange portion 6b of the roof side rail side reinforcing panel 6 and the overhang flange portion of the side sill side reinforcing panel 7 are provided. 6b is sandwiched.

  In such a part, if the flange portion 2a of the outer panel 2, the overhang flange portion 6b of the roof side rail side reinforcing panel 6 and the overhang flange portion 7b of the side sill side reinforcing panel 7 are previously spot-welded and joined, Spot welding is performed on the flange portion in such a portion of the panel 3 so that four-layer spot welding can be avoided.

  Further, as shown in FIG. 6 which is a cross-sectional drawing of the lower end portion on the side sill 12 side of the pillar body 10 in FIG. 1, in the inner space 4 formed by the outer panel 2 and the inner panel 3, Side sill side reinforcing panels 7 are adjacent to each other. At the same time, one reinforcing extension 6c of the roof side rail side reinforcing panel 6 extends on the outer panel 2 side and terminates in a state facing the side sill side reinforcing panel 7 in an overlapping manner.

  Thus, in this part, the overhanging flange portion 6b is cut off in one of the reinforcing extending portions 6c of the roof side rail side reinforcing panel 6. From this, the three-layer structure of the flange portion 2a of the outer panel 2, the overhanging flange portion 7b of the side sill side reinforcing panel 7 and the flange portion 3a of the inner panel 3 is adopted, and joining by spot welding is possible. I have to.

  By adopting the configuration as described above, in the embodiment according to the present invention, one of the reinforcing extensions is formed so as to extend in a state in which the overhanging flange portion 6b in the roof side rail side reinforcing panel 6 is cut off. The portion 6c and the other reinforcing extending portion 7c that is formed to extend in a state where the overhanging flange portion 7b of the side panel side reinforcing panel 7 is cut out are bonded to each other by polymerization. Moreover, one reinforcing extension 6c and the other reinforcing extension 7c are polymerized and bonded at each ridgeline.

  Therefore, the reinforcing member 5 is opposed to the chest and abdomen of the occupant in the pillar body 10 without using the members having different plate thicknesses or materials as in the prior art by the superposition of the reinforcing extending portions 6c and 7c. It is possible to prevent local deformation at the site and to sufficiently protect the safety of the occupant during a side collision of the automobile.

  Further, the reinforcing member 5 can be configured with high strength by the polymerization bond between the reinforcing extending portions 6c and 7c. For this reason, it is possible to improve the press formability as a result without adopting a conventional configuration in which members having different plate thicknesses or different materials are used.

  Furthermore, the reinforcing member 5 can be configured with high strength by the polymerization bond between the reinforcing extending portions 6c and 7c. Accordingly, the hinge attachment hole 2b formed in the outer panel 2 and the hinge attachment hole 6d formed on the roof side rail side reinforcing panel 6 and the side sill side are used without using the hinge reinforcement which is a separate part as in the prior art. Even if a door hinge (not shown) is directly mounted on the reinforcing member 5 using the hinge mounting hole 7d formed in the reinforcing panel 7, the door mounting strength can be sufficiently increased, and consequently the number of parts can be reduced. Can do.

  In addition, the tip of one reinforcing extension 6 c formed on the roof side rail side reinforcing panel 6 extends to the periphery of the door hinge mounting portion attached to the outer panel 2. Even from this, even if the door hinge is directly attached to the reinforcing member without using the hinge reinforcement, which is a separate part as in the past, the door mounting strength can be sufficiently increased, resulting in a reduction in the number of parts. It can be reduced.

  In addition, the leading end of one reinforcing extension 6 c of the roof side rail side reinforcing panel 6 extends over the side sill side reinforcing panel 7 to the vicinity of the door hinge mounting portion. Therefore, only the side sill-side reinforcing panel 7 is present between the vicinity of the door hinge attachment region and the side sill 12 without the presence of one reinforcing extension 6c. As a result, such a portion becomes a fragile portion and bends due to a bending moment at the time of a side collision of the automobile, so that the impact caused by the side collision of the occupant can be alleviated and the safety of the occupant can be achieved.

  Further, the roof side rail side reinforcing panel 6 made of a high-strength steel plate member is opposed to the outer panel 2 side so as to be away from the position of the center of gravity of the cross section of the pillar body 10. From this, it is possible to more efficiently prevent local deformation in a portion corresponding to the chest or abdomen of the occupant in the pillar body 10, and further improve the occupant safety protection function at the time of a side collision in the automobile. Can be made.

  Furthermore, the other reinforcing extension 7c of the side sill-side reinforcing panel 7 is configured to reach the vicinity of the connecting reinforcing panel 9, so that it corresponds to the chest or abdomen of the occupant in the pillar body 10. The function of preventing local deformation at the site can be further enhanced by the presence of the other reinforcing extension 7c.

  Next, another embodiment according to the present invention will be described with reference to FIGS. First, in another embodiment shown in FIG. 10, the connection reinforcing panel 9 is integrally formed with the roof side rail 11 as a case where the press formability has a good shape. Another embodiment having such a configuration is employed within a range in which the formability of the roof side rail 11 is not deteriorated, and can contribute to a reduction in the number of parts.

  Further, in still another embodiment according to the present invention, as shown in FIG. 11, the connection reinforcing panel 9 is replaced with the roof side rail side reinforcing panel 6 as a case where the press formability has a good shape. When integrally formed, or as shown in FIG. 12, the connecting supplementary strength panel 9 may be integrally formed with the side sill side reinforcing panel 7. Still another embodiment having such a configuration is employed within a range in which the formability of the roof side rail side reinforcing panel 6 is not deteriorated, and can contribute to a reduction in the number of parts.

  The present invention described above improves the press moldability of the reinforcing member disposed in the internal space formed by the outer panel and the inner panel, and reduces the number of parts by eliminating the hinge reinforcement, It can be said that it is suitable for a pillar structure of an automobile body that constitutes a vehicle body side skeleton in an automobile, because it can sufficiently protect the safety of an occupant during an automobile side collision.

DESCRIPTION OF SYMBOLS 1 Center pillar 2 Outer panel 2a Flange part 2b Hinge attachment hole 3 Inner panel 3a Flange part 4 Internal space 5 Reinforcement member 6 Roof side rail side reinforcement panel 6a Main body part 6b Overhang flange part 6c One extension part for reinforcement 6d Hinge Mounting hole 7 Side sill side reinforcing panel 7a Main body portion 7b Overhang flange portion 7c Extension portion for other reinforcement 7d Hinge mounting hole 9 Reinforcing panel 10 Center pillar main body 11 Roof side rail 12 Side sill

Claims (5)

The pillar body bridged between the roof side rail and the side sill that constitute the vehicle side frame is formed by superposing the outer panel and the inner panel, and the inner space formed by the outer panel and the inner panel A pillar structure of an automobile body provided with a reinforcing member disposed therein,
The reinforcing member is formed by connecting one end in the longitudinal direction of the roof side rail side reinforcing panel and the side sill side reinforcing panel, which are divided from each other, and connecting the other end in the longitudinal direction of the roof side rail side reinforcing panel to the connecting reinforcing panel. It is configured by interposing and connecting to the roof side rail, and connecting the other end in the longitudinal direction of the side sill side reinforcing panel to the side sill side,
In addition, the roof side rail side reinforcing panel and the side sill side reinforcing panel are respectively formed with protruding flange portions projecting outward on both sides in the longitudinal direction thereof. The roof side rail side reinforcing panel is adjacent to the outer panel side and the side sill side reinforcing panel is adjacent to the inner panel side in the internal space by being joined to each connecting flange portion of the inner panel. Are arranged, and
Further, the roof side rail side reinforcing panel 6 is formed with one reinforcing extending portion extending in a state where the projecting flange portion is cut off on the side sill side reinforcing panel side, and the side sill The side reinforcing panel is formed with the other reinforcing extending portion extending on the roof side rail side reinforcing panel side in a state where the projecting flange portion is cut out. Are polymerized together,
Further, the pillar of the vehicle body is characterized in that the end of one reinforcing extension formed on the roof side rail side reinforcing panel extends to the periphery of the door hinge mounting portion attached to the outer panel. Construction.   The pillar structure for an automobile body according to claim 1, wherein the roof side rail side reinforcing panel (6) is formed of a high-strength member with respect to the side sill side reinforcing panel.   The pillar structure for an automobile body according to claim 1 or 2, wherein the other reinforcing extending portion of the side sill side reinforcing panel reaches the vicinity of the connecting reinforcing panel.   The pillar structure for an automobile body according to any one of claims 1 to 3, wherein the connecting reinforcing panel is integrally formed with the roof side rail.   The pillar structure for an automobile body according to any one of claims 1 to 3, wherein the connecting reinforcing panel is integrally formed with the roof side rail side reinforcing panel.

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